Members of the public may address the City Council on any item shown on the agenda or matter of the Council’s authority after completion of “Request to Address the Council Form” available in the lobby of the Council Chambers or in the City Clerk’s office. This form must be completed 15 minutes prior to the scheduled meeting time. Pursuant to Section 54957.5 of the California Government Code, Any writings (Except for those writings which are exempt from disclosure) which are distributed to all or a majority of the members of the City Council are available for public inspection in the lobby of the City Council Chambers and in the office of the City Clerk during regular business hours.
COMPTON CITY COUNCIL
AGENDA
07/22/2025
4:30 PM – CLOSED SESSION
5:30 PM – PUBLIC MEETING
205 S. WILLOWBROOK AVE
COMPTON, CA 90220
OPENING
ROLL CALL
MOMENT OF SILENCE
PLEDGE OF ALLEGIANCE
PUBLIC COMMENTS ON CLOSED SESSION ITEMS
CLOSED SESSION
1. CONFERENCE WITH LEGAL COUNSEL: EXISTING LITIGATION - Pursuant to Government Code Section 54956.9
Maria Dominguez vs Los Angeles, et al.
Case No. 23CMCV00999
REPORT OUT OF CLOSED SESSION
PRESENTATIONS
2. CERTIFICATE PRESENTATION - MRS. DELORES ZURITA - Councilman Andre Spicer
-2- City Council Agenda
7/22/2025 5:30 PM
3. POWERPOINT PRESENTATION - 2022-2023 AUDIT REPORT - City Controller Sharon Rahban
4. POWERPOINT PRESENTATION - LEVYING THE MUNICIPAL TAX RATE - City Controller Sharon Rahban
PUBLIC COMMENTS ON AGENDA ITEMS AND NON-AGENDA MATTERS
CONSENT AGENDA
Consent items are routine and expected to be non-controversial. They will be acted upon by the Council at one time without discussion unless a Council Member requests an item be removed or discussed.
APPROVAL OF MINUTES
5. APRIL 15, 2025
CITY CLERK
6. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON,
CALIFORNIA, APPROVING THE IMPLEMENTATION OF AN ACTION AGENDA
FORMAT FOR CITY COUNCIL MEETINGS TO PROMOTE TRANSPARENCY,
EFFICIENCY, AND ACCOUNTABILITY
CITY FIRE DEPARTMENT
7. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO ISSUE A PURCHASE ORDER WITH
JANKOVICH COMPANY FOR THE PURCHASE OF DIESEL FUEL, MOTOR
COOLANT AND MOTOR LUBRICANTS FOR THE COMPTON FIRE
DEPARTMENT ($120,000.00)
8. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE ESTABLISHMENT OF A PURCHASE ORDER FOR LIFE ASSIST MEDICAL SUPPLIES, INC. FOR THE PURCHASE OF MEDICAL
SUPPLIES AND RELATED EQUIPMENT FOR THE CITY OF COMPTON FIRE DEPARTMENT ($125,000.00)
9. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO ISSUE PURCHASE ORDERS TO ONE
OR MORE VENDORS (BIT PROS FIRE SERVICES, WILLIAM KALVIKOV DBA
FIRE APPARATUS SOLUTIONS AND RENEWELL FLEET SERVICE) FOR
MAINTENANCE AND REPAIRS OF EMERGENCY FIRE APPARATUS FOR THE CITY OF COMPTON FIRE DEPARTMENT ($150,000.00)
-3- City Council Agenda
7/22/2025 5:30 PM
HUMAN RESOURCES
10. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO APPROVE A PURCHASE ORDER TO ROBERT HALF NOT TO EXCEED $17,178.52 FOR THE PURPOSE OF PAYING
OUTSTANDING INVOICES FOR STAFFING SERVICES FOR THE HUMAN
RESOURCES DEPARTMENT
PUBLIC WORKS DEPARTMENT
11. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO ISSUE A PURCHASE ORDER TO
GATEWAY CITIES COUNCIL OF GOVERNMENTS (GCCOG) FOR
PARTICIPATION IN THE I-710 CORRIDOR ENVIRONMENTAL IMPACT
REPORT/ENVIRONMENTAL IMPACT STATEMENT (EIR/EIS) AND THE 91/605/405 MAJOR CORRIDOR STUDY FOR FISCAL YEAR 2025-2026 IN AN AMOUNT NOT TO EXCEED FORTY-FIVE THOUSAND DOLLARS ($45,000)
REGULAR AGENDA
CITY MANAGER'S REPORT
12. REQUEST TO AUTHORIZE TRAVEL FOR ELECTED OFFICIALS - 54TH
CONGRESSIONAL BLACK CAUCUS ANNUAL LEGISLATIVE CONFERENCE - WASHINGTON, D.C. - SEPTEMBER 24, 2025 - SEPTEMBER 28, 2025
UNFINISHED BUSINESS
13. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
APPROVING THE SANITARY SEWER MANAGEMENT PLAN IN COMPLIANCE WITH STATE WATER RESOURCES CONTROL BOARD ORDER NO. 2022-0103- DWQ
14. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON ACCEPTING THE 2025 SEWER MASTER PLAN AND DIRECTING STAFF TO
IMPLEMENT ITS RECOMMENDATIONS
NEW BUSINESS
15. AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF COMPTON LEVYING A MUNICIPAL TAX RATE FOR THE FISCAL YEAR 2025-2026
16. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON RESCINDING RESOLUTION NO. 26,181 AND AUTHORIZING THE CITY
MANAGER TO ENTER INTO A NEW AGREEMENT WITH PRICE PAIGE &
COMPANY LLP, AND TO OPEN A NEW PURCHASE ORDER TO PRICE PAIGE & COMPANY LLP FOR CONTINUED CERTIFIED PUBLIC ACCOUNTANT SERVICES ($36,478).
-4- City Council Agenda
7/22/2025 5:30 PM
17. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE ESTABLISHMENT OF A PURCHASE ORDER TO THE CITY
OF DOWNEY FOR FIRE AND EMERGENCY MEDICAL DISPATCHING
SERVICES ($800,000.00)
18. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO APPROVE AN AMENDMENT TO THE FISCAL YEAR 2025-2026 BUDGET AND POSITION CLASSIFICATION PLAN BY
ADOPTING NEW AND AMENDED CLASSIFICATION SPECIFICATIONS FOR
THE POSITIONS OF ASSISTANT CITY ENGINEER, ASSISTANT CIVIL
ENGINEER, ASSISTANT WATER DEPARTMENT GENERAL MANAGER,
ASSOCIATE CIVIL ENGINEER, CITY CLERK TECHNICIAN, ENVIRONMENTAL
SERVICES COORDINATOR, FISCAL COORDINATOR, HOUSING DIRECTOR,
HOUSING ELIGIBILITY SPECIALIST, MUNICIPAL LAW DIVISION CHIEF,
PARATRANSIT DRIVER, PAYROLL SPECIALIST, PUBLIC INFORMATION
SPECIALIST, PURCHASING MANAGER, SENIOR
CIVIL ENGINEER, AND WATER DEPARTMENT GENERAL MANAGER
19. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON (ACTING
IN ITS CAPACITY AS THE CITY AND AS SUCCESSOR TO THE HOUSING
ASSETS OF THE FORMER COMMUNITY REDEVELOPMENT AGENCY OF THE
CITY OF COMPTON) MAKING CERTAIN FINDINGS, AUTHORIZING THE CITY
MANAGER TO EXECUTE AND DELIVER A HOUSING AGREEMENT (DENSITY BONUS AGREEMENT) BY AND BETWEEN THE CITY AND 1434 W. COMPTON
BOULEVARD LP AND THE FIRST AMENDMENT TO THE DISPOSITION AND DEVELOPMENT AGREEMENT BY AND BETWEEN THE CITY AND 1434 W.
COMPTON BOULEVARD LP FOR THE CONVEYANCE OF PROPERTY BY THE CITY LOCATED AT 1434 W. COMPTON BOULEVARD IN THE CITY AND THE
DEVELOPMENT OF AN AFFORDABLE HOUSING PROJECT THEREON,
FINDING THAT THE PROJECT IS EXEMPT FROM ENVIRONMENTAL REVIEW
UNDER THE CALIFORNIA ENVIRONMENTAL QUALITY ACT, AND TAKING
RELATED ACTIONS
COUNCIL COMMENTS
ADJOURNMENT
NEXT REGULAR MEETING: 9/2/2025 5:30 PM
Visit our website at http://www.comptoncity.org
Councilwoman Delores Zurita (Emeritus)
A Legacy of Leadership, Compassion, and Lifelong Service to the City of Compton Councilwoman Delores Zurita, a proud Compton resident since 1949, has devoted her life to uplifting the people and neighborhoods of Compton through fearless leadership, unrelenting compassion, and unwavering dedication. Her decades of service—both inside and outside of City Hall—have left an indelible mark on the city she calls home.
Delores’ desire to serve others was born from a deeply personal promise. As a child, she watched her beloved mother—bedridden with debilitating arthritis—long to attend school events and community activities, but unable to do so due to her condition. Delores vowed that when she became a mother, she would attend every one of her children’s events in her mother’s honor. That commitment to being present for others became the foundation of a life dedicated to service, compassion, and advocacy.
Honoring that promise, Delores began her public service journey as the Charter PTA President at her children’s school, Clarence A. Dickison Elementary. It was in this role that she first discovered her voice as a leader and advocate. Her dedication to improving opportunities for youth and families laid the groundwork for what would become a lifetime of transformative service to the City of Compton.
Educated in Compton public schools, Delores went on to attend Compton Community College and the University of La Verne. She later became the First District’s representative on the Compton City Council, where she served two terms over eight transformative years.
During her tenure, she made history as the first Compton Councilmember appointed to a state board—joining the California Continuing Care Advisory Committee in 2003 at the request of then-Assembly Speaker Herb Wesson.
But long before public office, Delores began her service as a young mother driven by a desire to create opportunities for her children and their peers. In 1968, she co-founded Dickison Community Lighted Schools, Inc., Compton’s first after-school program.
Thousands of children benefited from access to dance, art, games, mentorship from professional athletes and business leaders, and a safe, enriching space to thrive. When federal funding ended, Delores reimagined the program to serve seniors—ultimately delivering over 3.5 million meals through Meals on Wheels and congregate dining services.
Delores brought that same spirit of care and action to City Hall. Her vision and leadership were instrumental in a period of phenomenal progress for Compton:
2. - Gonzales Park Aquatic Center, a long-awaited pool and water park for West Compton youth, became a reality through her tireless advocacy. In 2018, the City of Compton fittingly renamed it the Delores Zurita Aquatic Center in her honor. - She spearheaded the creation of the Compton Renaissance Bus System, which continues to serve residents to this day.
- She led efforts to repave streets, enact a youth curfew to deter crime, and implement bans on Saturday Night Specials and harmful advertising.
- Under her guidance, the city welcomed key economic and community assets: two Rite Aids, a new McDonald's, a state-of-the-art boxing gym, a community garden, and housing revitalization and beautification initiatives such as First Time Homebuyers, Commercial Façade, and Project Redirection.
- She secured nearly half a million dollars in federal grant funding for a national study on senior nutrition and hydration, which remains a national model.
Known affectionately as the “Humanitarian on the Council,” Delores founded and sponsored beloved community events including the Grandparents’ Christmas Luncheon, Easter Eggstravaganza, 100 Women in Hats Luncheon, Black & Brown Bone Marrow Drive, Cinco de Mayo Celebration, and the Black & White Ball. She was also a vocal advocate and financial supporter of the “Gift of Sight” program, which provided free eye exams and glasses to underprivileged children and seniors.
She hosted the local cable show “Compton’s Best Kept Secrets,” spotlighting neighborhood heroes, local businesses, and community events that inspired pride and unity.
She supported countless school programs, youth sports teams, field trips, and the Compton Council of PTA Luncheons.
Delores served on the Compton College Citizens’ Bond Oversight Committee and currently serves as Chair of the E. Boyd Esters Rosecrans Manor Board of Directors, continuing her mission to care for the most vulnerable.
Her legacy lives on through her two daughters:
- Satra Zurita, Compton City Clerk and President Emeritus of the Compton Unified School District Board of Trustees
- Janna Zurita, former two-term Compton Councilmember for the First District She is also the proud grandmother of Armani and Chanel, who carry forward her spirit of strength and service.
In reflecting on her mother’s legacy, City Clerk Satra Zurita shared:
“My mother exemplifies the extraordinary in public service. A Greek proverb says, ‘A society grows great when old men [or women] plant trees whose shade they will never enjoy.’ My mother planted many trees. She made sacrifices that others wouldn't—and from her, I’ve learned the true cost of service and the power of legacy. I am proud to carry it forward.”
Honors & Recognition
Delores Zurita’s contributions have earned her countless honors, including:
- Woman of Distinction – Senator Rod Wright
- Woman of the Year – 52nd Assembly District (Assemblymembers Hall & Murray) - Business Woman of the Year – Compton Chamber of Commerce - Outstanding Achievement Award – Top Ladies of Distinction - PTA Lifetime Achievement Award – Clarence A. Dickison PTA - Humanitarian Award – City of Compton
- Breast Cancer Survivor Activist of the Year – Women of Color Organization (Full list available upon request)
Councilwoman Delores Zurita is a beacon of what it means to lead with heart, act with purpose, and serve with love. Her name—etched into the Delores Zurita Aquatic Center— is not only a tribute to her tireless fight to bring a pool to West Compton, but a symbol of the generations she inspired, fed, mentored, and protected.
She is, and will always be, one of Compton’s greatest public servants—a matriarch of progress, a champion for equity, and a guardian of the community’s future.
CONTROLLER
PRESENTATION
3. Fund Balance
General Fund
Self Insurance Funds
FY 2022-2023 Audited Financial Statement Footnote Disclosure:
• Link To file on City Website:
• https://www.comptoncity.org/home/showpublisheddocument/12446/638864344 551700000
• See Page 13 of 93 for General Fund, Fund Balance
• See Page 58 of 93 for funds with Deficit net position/fund balances as of 6/30/23
City Loans Receivable – City as
Creditor
First Time Home Buyer
Community Housing Development Organization (CHDO)
Home Investment Partnerships Program (HOME)
Community Development Block Grants Section 108
Development related
FY 2022-2023 Audited Financial Statement Footnote Disclosure:
• Link To file on City Website:
• https://www.comptoncity.org/home/showpublisheddocu
ment/12446/638864344551700000
• See page 44 of 93 for the “Loans Receivable” section
Loan
Categories
Include:
Audit Findings and Corrective Action
Plans
Link to Single Audit Reports on City Website
Documenthttps://www.comptoncity.org/departments/city-controller/documents -and-reports/-folder-222#docfold_14_365_320_222s and Reports | Compton, CA Single Audits from FY 2024 through FY2023 have links on that website For FY 2022-2023 Single Audit, see the following link on the City Website:
https://www.comptoncity.org/home/showpublisheddocument/12482/638864670427970 000
On Page 5 of 52 of the file, see the “Independent Auditor’s Report on Compliance for Each Major Program; Report on Internal Control Over Compliance; and Report on Schedule of Expenditures of Federal Awards Required by the Uniform Guidance Starting on Page 13 of 52, see the City’s Single Audit, Audit findings, City Responses, and Corrective Action Plans, Effects or Potential Effects of findings are described 1 APRIL 15, 2025
The Compton City Council meeting was called to order at 5:40 p.m. by Mayor Emma Sharif in the Council Chambers of City Hall. The Moment of Silence and Pledge of Allegiance Ceremonies were also led by Mayor Emma Sharif.
ROLL CALL
Council Members Present: D. Duhart, A. Spicer, J. Bowers, L. Darden, Mayor E. Sharif Council Members Absent: None
Other Officials Present: S. Zurita, W. Hopkins, Jr.
Other Officials Absent: E. Perrodin, B. Mims
PRESENTATIONS
1. CERTIFICATE PRESENTATION RECOGNIZING JESSE GONZALES, COMPTON WALMART STORE MANAGER - Mayor Sharif
Mayor Sharif and City Council recognized Jesse Gonzales for facilitating the provision of food and toys during the holiday season, revitalizing traffic apparatus’ with artwork, and helping to create job opportunities through participation in local career fairs.
PUBLIC COMMENTS ON AGENDA ITEMS AND NON-AGENDA MATTERS
Donald Conley, Barberizm The Shoppe, expressed his appreciation for receiving a grant award for doing business in the City. He also asked that the City consider hiring local businesses to keep the City clean.
Gail Kennedy, Saint James AME Church, raised concerns about the ban on fireworks, stating that it unfairly impacted nonprofit organizations and outreach programs. She questioned whether the City would reimburse permit holders and called for action against illegal fireworks.
Benjamin Holifield articulated his support for the improvements at Alondra Gateway Park.
Richard Earl encouraged the community to participate in the Earth Day Celebration on April 19 at Gonzalez Park. He also advocated for a ban on fireworks in the City of Compton.
Patricia Gonzalez communicated that she feels unheard and unsafe due to escalating issues with squatters near her home. She described a disturbance caused by individuals frequently entering and exiting the home next to hers at all hours, disrupting her peace and compromising the well- being of her household.
John Kelly, Fireworks, sought clarification on whether the decision to ban fireworks permits in Compton would return to the City Council. Additionally, he questioned if a staff approval letter would be grandfathered.
Yashunya Danzy, encouraged individuals experiencing similar issues with squatters to remain patient. She recognized Code Enforcement, Building and Safety and Councilmember Spicer for their efforts to remedy the situation.
Legrand Clegg, former City Attorney, spoke in support of Andrew Thompson, CEO of Screaming Eagles, who could not attend this meeting due to personal reasons. He asked the City to reconsider Mr. Thompson for the illegal dumping contract and highlighted Mr. Thompson’s local roots and impressive performance.
5. 2
Mark Smith expressed his support for Item 5, stating that it is impossible to distinguish between Safe and Sane fireworks and illegal ones. He referenced news reports of illegal fireworks being manufactured at residences and emphasized the need to consider the significant air pollution and environmental damage that such activities can cause in the City.
Lynn Boone raised concerns about the legality of Items 2 and 3, asserting that the City Manager lacks legal authority. She highlighted that voters elected a City Attorney as the legal authority, and that any changes in that position should be determined by the Mayor and City Council. She questioned the City Council's authority to override Measure F and criticized the City Manager for improperly influencing the City Council’s decisions.
Missy Barbara invited the community to participate in an Autism Awareness event scheduled to be held on Saturday, April 19 at the Compton Airport beginning at 9:00am. She emphasized the need for more information regarding a specific company associated with Item 6. With regard to Item 8, Missy accused the organization of not submitting necessary documents, including bylaws and financial statements.
Fidel Marquez referenced Item 6 and questioned what Yunex did to receive over $1M when traffic sensors have yet to be repaired. He also stated that as a Charter City, Compton should not feel obligated to comply with State mandates without proper consideration.
Vanessa Cain stated that compliance with State mandates should only occur if the City entered into specific agreements with the State. She voiced a concern about existing infrastructure issues and advocated for the improvement of existing neighborhoods. In support of Item 5, she remarked that Compton's infrastructure is inadequate for fireworks-related activities, given its aging structures.
Maria Villarreal emphasized the importance of citizenship classes aimed at educating individuals about the challenges they face daily. She outlined a community involvement program designed as a forum for discussing and prioritizing educational strategies to improve the City. She also questioned whether the City would establish more committees that promote diversity while fostering unity within the community.
CONSENT AGENDA
On motion by Duhart, seconded by Spicer, the Consent Agenda was approved by the following vote on roll call:
AYES: Council Members – Duhart, Spicer, Bowers, Darden, Sharif NOES: Council Members – None
ABSENT: Council Members – None
Councilmember Bowers requested a comprehensive overview of both items.
Jose Garfias, Water Department General Manager, presented the water conservation agreement between the City of Compton and the Metropolitan Water District (MWD), noting that these are the fourth amendments to the original agreement established in 2006 and amended in 2015. The current agreement is set to expire in 2025. Staff is requesting an extension for an additional ten years to support water conservation efforts.
Councilmember Bowers inquired about programs that assist residents with paying their water bills.
Mr. Garfias explained that residents can apply for residential rebate programs on the City’s website at comptoncity.org. He also clarified that the agreement is strictly for water conservation efforts, which could indirectly lead to savings on water bills through reduced consumption.
Councilmember Darden inquired about the water conservation poster contest collaboration with the Compton Unified School District.
Mr. Garfias answered that he would investigate the status of the contest. 3 WATER DEPARTMENT
2. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO AMEND THE METROPOLITAN WATER
DISTRICT OF SOUTHERN CALIFORNIA (MWD) RESIDENTIAL WATER CONSERVATION FUNDING AGREEMENT NO. 70030 (Resolution 26,225)
3. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO AMEND THE METROPOLITAN WATER
DISTRICT OF SOUTHERN CALIFORNIA (MWD) WATER CONSERVATION FUNDING AGREEMENT NO. 66642 (Resolution 26,226)
REGULAR AGENDA
UNFINISHED BUSINESS
4. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON ACCEPTING THE PROPOSAL FROM VALLEY VISTA SERVICES, INC. FOR
CITYWIDE ILLEGAL DUMPING CLEAN-UP, REMOVAL, AND HAUL-AWAY
SERVICES, TO AUTHORIZE THE CITY MANAGER TO ENTER INTO A ONE- YEAR SERVICE AGREEMENT WITH TWO (2) ONE-YEAR EXTENSION OPTIONS
FOR THREE HUNDRED SIXTY-SEVEN THOUSAND TWO HUNDRED SEVENTY DOLLARS ($367,270.00) ANNUALLY AND TO ESTABLISH A PURCHASE ORDER
IN AN AMOUNT NOT TO EXCEED ONE HUNDRED TWENTY-TWO THOUSAND
FOUR HUNDRED TWENTY-THREE DOLLARS AND THIRTY-TWO CENTS
($122,423.32), FOR THE REMAINDER OF FISCAL YEAR 2024-2025 Councilmember Bowers mentioned California's mandate to reduce landfill contributions and questioned whether Valley Vista Services recycled certain materials, specifically e-waste.
Manny Perez, Valley Vista Services, confirmed that the company owns and operates a recycling facility in the City of Industry and meets all state requirements for waste diversion. He stated that they are licensed to haul e-waste, universal waste, and tires - and are permitted for waste hauling by the LA County Public Health Department.
Councilmember Darden asked Mr. Perez if he conducts e-waste events in other cities.
Mr. Perez answered that they offer e-waste and household hazardous waste events, as well as shredding services in some jurisdictions, which were not included in the public bidding requirements.
Councilmember Darden asked if an e-waste event in Compton would incur additional costs.
Mr. Perez stated that they would be willing to waive the cost of at least one e-waste event per year.
Councilmember Darden informed residents that the current contract is for one year with two one- year extension options and mentioned that if services are unsatisfactory, the City could request new proposals for the illegal dumping contract.
Councilmember Spicer inquired about cleanup efforts along railroad tracks and homeless encampments.
Mr. Perez answered that they have partnerships with several jurisdictions, which allows them to clean up in those areas.
4 On motion by Bowers, seconded by Darden, Resolution #26,227 entitled “A RESOLUTION OF
THE CITY COUNCIL OF THE CITY OF COMPTON ACCEPTING THE PROPOSAL FROM VALLEY VISTA SERVICES, INC. FOR CITYWIDE ILLEGAL DUMPING
CLEAN-UP, REMOVAL, AND HAUL-AWAY SERVICES, TO AUTHORIZE THE CITY MANAGER TO ENTER INTO A ONE-YEAR SERVICE AGREEMENT WITH TWO (2)
ONE-YEAR EXTENSION OPTIONS FOR THREE HUNDRED SIXTY-SEVEN THOUSAND TWO HUNDRED SEVENTY DOLLARS ($367,270.00) ANNUALLY AND
TO ESTABLISH A PURCHASE ORDER IN AN AMOUNT NOT TO EXCEED ONE
HUNDRED TWENTY-TWO THOUSAND FOUR HUNDRED TWENTY-THREE
DOLLARS AND THIRTY-TWO CENTS ($122,423.32), FOR THE REMAINDER OF FISCAL YEAR 2024-2025” was approved by the following vote on roll call:
AYES: Council Members – Bowers, Darden, Sharif NOES: Council Members – Duhart, Spicer
ABSENT: Council Members – None
5. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO SUSPEND THE ISSUANCE OF
FIREWORKS PERMITS
City Manager Hopkins Jr. elucidated that the Compton Municipal Code Section 22.2 regulates fireworks and grants the authority to suspend permits.
Councilmember Darden asked that someone address the statement made by Gail Kennedy regarding possible reimbursements.
City Clerk Zurita stated that the City Clerk’s Office received checks from the vendor for ten applications that have not been cashed.
Councilmember Bowers reported receiving mixed feedback from constituents regarding fireworks. He argued that without proper data, making an informed decision would be challenging.
He also suggested creating a streamlined grant program to support nonprofits potentially impacted by a ban on fireworks in the City of Compton.
Councilmember Darden expressed a concern for the enforcement of fireworks regulations if permits are not suspended.
Councilmember Bowers mentioned being approached by a company at the podium offering drone enforcement services in the City of Compton.
Councilmember Spicer warned that banning Safe and Sane fireworks would not eliminate all noise from fireworks, as illegal ones would still occur frequently. He emphasized the need for effective enforcement and indicated discomfort in voting on the matter until clearer community consensus is reached.
Councilmember Duhart inquired about the technology used by the city of Lakewood to identify fireworks.
City Manager Hopkins Jr. confirmed ongoing discussions regarding new technology, including cameras capable of differentiating between gunfire and fireworks. He noted the benefits of the existing ShotSpotter system but acknowledged its current limitations due to a lack of full coverage.
Mayor Sharif expressed concerns for residents, particularly seniors and veterans distressed by the impacts of fireworks.
Councilmember Darden recalled that several weeks prior, during a public hearing, she suggested organizing a fireworks show and putting the matter back on the ballot for the upcoming election. 5 City Manager Hopkins Jr. responded that, under the current municipal code, there is no necessity to put anything on the ballot unless the City intends to move toward a permanent ban on fireworks.
He explained that the current item is a recommendation for suspension of permits, but if the City Council desired, they could pursue a measure for a permanent ban.
Councilmember Spicer stated this decision would need to be revisited annually if it is not placed on the ballot.
City Manager Hopkins Jr. confirmed that the way the resolution is written, it would suspend fireworks permit issuance until this Body decides otherwise.
Councilmember Duhart shared that she received numerous phone calls from citizens, all expressing opposition to fireworks, largely due to concerns related to the Pacific Palisades and Eaton fires. She encouraged nonprofits to apply for grants available to support their organizations.
Councilmember Bowers reiterated the need to streamline grants to nonprofits in Compton, noting that only ten nonprofits were affected.
Councilmember Spicer cautioned against referencing the Eaton fires in relation to fireworks, clarifying that the Eaton incidents were tied to Edison and not fireworks.
Councilmember Bowers emphasized the need for an arson investigation program and affirmed that all fires should be thoroughly investigated to determine their causes.
City Manager Hopkins Jr. informed the public that opportunities for grants are available and that during negotiations with Republic Services - they offered multiple grants to nonprofits including up to $250,000.
Mayor Sharif stated that, to her understanding, the only application the City received was from the vendor.
City Clerk Zurita confirmed that the City Clerk’s office received ten applications from the vendor on April 1. She also emphasized that the City, nor the Clerk's Office promoted any information related to fireworks applications.
On motion by Bowers, seconded by Duhart, Resolution #26,228 entitled “A RESOLUTION OF
THE CITY COUNCIL OF THE CITY OF COMPTON AUTHORIZING THE CITY MANAGER TO SUSPEND THE ISSUANCE OF FIREWORKS PERMITS” was approved by the following vote on roll call:
AYES: Council Members – Duhart, Bowers, Darden, Sharif NOES: Council Members – None
ABSTAIN: Council Members – Spicer
ABSENT: Council Members – None
NEW BUSINESS
6. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
ACCEPTING THE PROPOSAL FROM YUNEX, LLC FOR CITYWIDE TRAFFIC
SIGNAL AND STREET LIGHT MAINTENANCE AND EMERGENCY RESPONSE SERVICES, TO AUTHORIZE THE CITY MANAGER TO ENTER INTO A THREE (3) YEAR SERVICE AGREEMENT WITH TWO (2) TWO-YEAR EXTENSION OPTIONS FOR ONE MILLION TWO HUNDRED THOUSAND DOLLARS ($1,200,000)
ANNUALLY, AND TO ESTABLISH A PURCHASE ORDER FOR AN AMOUNT OF THREE HUNDRED FIFTY THOUSAND DOLLARS ($350,000) FOR THE REMAINDER OF FISCAL YEAR 2024-2025
City Manager Hopkins Jr. recalled that this item had been brought to him many months earlier, but only one solicitor had been involved, leading him to request a wider solicitation. During the solicitation, Yunex was identified as the most responsive bidder, prompting the recommendation to move forward with them.
6 Councilmember Spicer inquired whether a previous contract with Yunex existed.
City Manager Hopkins Jr. confirmed that Yunex has been the City's provider for several years.
Councilmember Spicer requested input from street maintenance regarding the quality of Yunex's work.
Mr. Harris, Interim Streets Director, stated that Yunex has provided substantial support, allowing the City to borrow 10 controller cabinets.
Unidentified Speaker, Yunex, confirmed that they have been the signal maintenance contractor since 2018 until the contract expired in December 2024. He added that they continue to service the community monthly, conducting preventative maintenance at all 111 intersections and noting deficiencies for repair requests.
Councilmember Bowers inquired about street lighting maintenance.
Unidentified Speaker, Yunex, clarified that the current contract focuses on traffic signals, with some safety lights maintained through monthly surveys and outage reports.
Councilmember Duhart asked how safety light outages are detected.
Unidentified Speaker, Yunex, explained that a technician conducts monthly night surveys of every intersection to document outages.
Councilmember Bowers requested the addition of reflective outlines around traffic signals.
Unidentified Speaker, Yunex, estimated that the cost would exceed $1M due to varying traffic signal head designs. He suggested a budget-friendly alternative involving sanding, painting, and taping if the signal heads are in good condition.
City Manager Hopkins Jr. stated that the plan is to install new reflective light apparatuses at major thoroughfares and gradually expand the project citywide as the budget allows.
On motion by Duhart, seconded by Darden, Resolution #26,229 entitled “A RESOLUTION OF
THE CITY COUNCIL OF THE CITY OF COMPTON ACCEPTING THE PROPOSAL
FROM YUNEX, LLC FOR CITYWIDE TRAFFIC SIGNAL AND STREET LIGHT
MAINTENANCE AND EMERGENCY RESPONSE SERVICES, TO AUTHORIZE THE CITY MANAGER TO ENTER INTO A THREE (3) YEAR SERVICE AGREEMENT WITH TWO (2) TWO-YEAR EXTENSION OPTIONS FOR ONE MILLION TWO HUNDRED THOUSAND DOLLARS ($1,200,000) ANNUALLY, AND TO ESTABLISH A
PURCHASE ORDER FOR AN AMOUNT OF THREE HUNDRED FIFTY THOUSAND DOLLARS ($350,000) FOR THE REMAINDER OF FISCAL YEAR 2024-2025” was approved by the following vote on roll call:
AYES: Council Members – Duhart, Spicer, Bowers, Darden, Sharif NOES: Council Members – None
ABSENT: Council Members – None
7. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON AUTHORIZING THE CITY MANAGER TO ENTER INTO A THREE (3) YEAR
AGREEMENT WITH AND ISSUE A PURCHASE ORDER TO THE CITY OF
VERNON CALIFORNIA FOR THE LEASE OF CENTRAL BASIN GROUNDWATER PUMPING RIGHTS FOR FISCAL YEARS 2025-2026-2026-2027 AND 2027-2028 ($720,000.00)
Councilmember Bowers requested an explanation regarding groundwater pumping rights and whether other municipalities, besides Vernon, offer this service. 7 Jose Garfias, Water Department General Manager, explained that pumping rights are essential for extracting groundwater from wells. He stated that to keep costs down for citizens, the City aims to pump its own water rather than purchasing more expensive imported water from MWD. He also noted that the City chose Vernon primarily based on cost considerations.
On motion by Darden, seconded by Duhart, Resolution #26,230 entitled “A RESOLUTION OF
THE CITY COUNCIL OF THE CITY OF COMPTON AUTHORIZING THE CITY MANAGER TO ENTER INTO A THREE (3) YEAR AGREEMENT WITH AND ISSUE A
PURCHASE ORDER TO THE CITY OF VERNON CALIFORNIA FOR THE LEASE OF CENTRAL BASIN GROUNDWATER PUMPING RIGHTS FOR FISCAL YEARS 2025- 2026-2026-2027 AND 2027-2028 ($720,000.00)” was approved by the following vote on roll call:
AYES: Council Members – Duhart, Spicer, Bowers, Darden, Sharif NOES: Council Members – None
ABSENT: Council Members – None
8. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO ENTER INTO A LEASE AGREEMENT
BETWEEN COMPTON CHAMBER OF COMMERCE TO PROVIDE SPACE AT THE CITY-OWNED PROPERTY LOCATED AT (700 NORTH BULLIS ROAD) (TABLED)
COUNCIL COMMENTS
Councilmember Duhart offered the following communications/announcements:
Recognition, Events, & Updates: Councilmember Duhart attended the Read Across America event at Kipp Compton Elementary School and the ribbon-cutting celebration at Alondra Gateway Park. Councilmember Duhart announced that the Hope After Tragedy Community Dinner has been canceled. The next gathering is scheduled for May 20. Dodgers DreamTeam Opening Day: On April 19, Opening Day will be held at Gonzales Park beginning at 9:00am. For more information, contact Dollarhide at 310-605-5688. Earth Day: On April 20, the Beautification Committee in collaboration with the Recreation Department will be celebrating Earth Day at Gonzales Park from 10:00am to 2:00pm. Support for Local Economy: Councilmember Duhart encouraged everyone to eat, shop, and buy Compton to help create a safe, clean, and friendly City.
Councilmember Spicer offered the following communications/announcements:
Easter Extravaganza: On April 19, An Easter Extravaganza will be held in partnership with Children Striving Together at Wilson Park from 12:00pm to 4:00pm. Community Concerns: Councilmember Spicer raised concerns about the following: an increase in illegal dumping on the Alameda Ave. train tracks and a gate down at the pocket park on Long Beach Blvd. between Palmer St. and Compton Blvd. Councilmember Spicer encouraged residents to report nuisance houses, squatting, or criminal activities to his office at [email protected]. Councilmember Spicer reported an increase in human trafficking in District 2, particularly on Long Beach Blvd. between Compton Blvd. and Rosecrans Ave.
Community Highlights: Councilmember Spicer shared information about regular programs at Lueders Park, including a free Shape Your Body fitness and wellness training class on Tuesdays from 6:00pm to 7:00pm, and a free beauty training class every Wednesday from 4:30pm to 6:00pm in collaboration with Dollhouse Beauty and Business Mentorship.
Councilmember Spicer mentioned that HVAC systems were being installed at Lueders Park by the end of the week.
8 Beyond Barriers: Councilmember Spicer highlighted a Beyond Barriers event on April 24 at Dollarhide which will feature an on-site record expungement clinic, fair chance housing resources, community resources, an experimental reentry simulation program, and networking opportunities. Councilmember Spicer noted that his office has helped over 450 people expunge their records, with more than 250 individuals gaining employment and 117 people obtaining housing.
Reproductive Health Solutions for 2025: On May 3, a reproductive health community event will be held at Dollarhide from 10:00am to 6:00pm. Priority vending opportunities will be offered to Compton-based holistic businesses.
Memorials: Councilmember Spicer paid tribute to his grandmother, Eddie Bell, who passed away at the age of 95.
Councilmember Bowers offered the following communications/announcements:
Recognition, Events, & Updates: Councilmember Bowers acknowledged the amazing turnout for the Alondra Gateway Park ribbon-cutting ceremony. Councilmember Bowers recognized the efforts of his liaisons, Assemblymember Mike Gipson’s Office, the City of Compton, San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy, and local stakeholders.
Earth Day Gospel Concert: On April 18, Councilmember Bowers will sponsor an Earth Day Gospel Concert in collaboration with Dr. Fred Martin at the Compton Kids Club.
Doors at 5:00pm.
Earth Day: On April 19, the Beautification Committee in collaboration with the Recreation Department will be celebrating Earth Day at Gonzales Park from 10:00am to 2:00pm. Autism Event: On April 19, Hub City Autism Network will host a "Stepping for Autism Walk” at Compton Airport beginning at 9:00am.
Easter Egg Hunt: An Easter Egg Hunt will be held on April 18, in partnership with Parks and Recreation and Kings Journey at Walter Tucker Park from 2:00pm to 6:00pm. Memorials: Councilmember Bowers remembered long-time Compton resident Eileen Noden.
Councilmember Darden offered the following communications/announcements:
Recognition & Events: Councilmember Darden attended the Black Parents Teachers Association meeting at Colin P. Kelly Elementary School in the Fourth District.
Councilmember Darden also attended the Saint Timothy Towers Residents meeting on April 10, where she presented a plaque to resident Josie Hearns. Councilmember Darden also attended the grand opening and ribbon-cutting ceremony for the new Alondra Gateway Park located at 412 W. Alondra Blvd. Councilmember Darden toured the Fourth District with the City Manager for their annual assessment of improvements and concerns in the area. Councilmember Darden participated in the Easter Extravaganza at Burrell McDonald Park and attended the Spring Festival at Kelly Park.
Community Concerns: Councilmember Darden mentioned the need for a horse crossing at Alondra Gateway Park. Councilmember Darden reminded property owners that an annual assessment of $54 for the maintenance of the City’s sewer system would be included in their property tax bills.
Cricket Pitch: On April 16, the City of Compton’s Recreation Department will host a Cricket Pitch Discussion at Kelly Park from 12:00pm to 1:00pm. Trash Disposal Reminder: Councilmember Darden reminded residents that Republic Services offers exclusive waste and recycling collection including the disposal of six bulky items up to four times a year. For more information, please call 800-299-4898. 9 In Closing: Councilmember Darden commended the Public Works Department for their efforts to clean areas impacted by illegal dumping.
Mayor Sharif offered the following communications/announcements:
Recognition, Events, & Updates: Mayor Sharif expressed her heartfelt gratitude to Assemblymember Mike Gipson’s Office and the San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy for their support of Alondra Gateway Park. Dodgers DreamTeam Opening Day: On April 19, Opening Day will be held at Gonzales Park beginning at 9:00am. For more information, contact Dollarhide at 310-605-5688. Congresswoman Maxine Waters Visit: On April 19, Congresswoman Maxine Waters will share key updates on federal policies at Dollarhide from 2:00pm to 4:00pm. Clergy Breakfast: On May 2, Mayor Sharif will host a Clergy Breakfast in City Hall Chambers from 10:00am to 1:00pm. This event invites pastors and clergy members from Compton to connect and discuss community support strategies. Interested participants can call 424-344-0961 for more information.
In Closing: Mayor Sharif affirmed the City Council’s collective commitment to improving Compton and building a stronger community.
ADJOURNMENT
On motion by Duhart, seconded by Darden, the meeting was adjourned in memory of Aileen Nolden and Eddie Bell at 7:34 p.m., by the following vote on roll call:
AYES: Council Members – Duhart, Bowers, Darden, Sharif NOES: Council Members – None
ABSENT: Council Members – Spicer
_____________________________________ __________________________________
SATRA ZURITA EMMA SHARIF
CITY CLERK OF THE CITY OF COMPTON MAYOR OF THE CITY OF COMPTON July 22, 2025
TO: HONORABLE MAYOR AND CITY COUNCIL MEMBERS
FROM: CITY CLERK
SUBJECT: A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON,
CALIFORNIA, APPROVING THE IMPLEMENTATION OF AN ACTION
AGENDA FORMAT FOR CITY COUNCIL MEETINGS TO PROMOTE
TRANSPARENCY, EFFICIENCY, AND ACCOUNTABILITY
SUMMARY
The Office of the City Clerk respectfully submits this report in support of a resolution authorizing the implementation of an Action Agenda Format, also known as “action minutes” as the official record for Compton City Council meetings beginning September 2, 2025. This format emphasizes decisions, actions, and results, enabling faster publication, increased public transparency, and more efficient internal documentation processes.
BACKGROUND
The City Council of the City of Compton currently utilizes a traditional meeting minutes format, which provides a detailed narrative of discussions. While thorough, this method is time-consuming, resource-intensive, and may delay the availability of meeting records to the public.
Many municipalities throughout California and the United States have successfully transitioned to an action minutes format, which documents the essential components of a meeting without verbatim transcriptions. This format includes roll call, public comments by speaker name, agenda item titles, motions, votes, and final actions.
STATEMENT OF THE ISSUE
The current minutes preparation process delays public access to official meeting outcomes and places a high administrative burden on City Clerk staff. Transitioning to an Action Agenda Format will align the City’s practices with modern municipal standards and provide clearer, timelier records of official City Council actions.
6.6. Action Agenda Format
Staff Report
FISCAL IMPACT
There is a cost savings of over Fifty Thousand Dollars ($50,000.00) in contracted services associated with this transition. Additionally, adopting an action minutes format is expected to yield administrative cost savings over time through reduced transcription verification hours, streamlined recordkeeping, and quicker turnaround for public access and internal use.
ALTERNATIVE
Maintain the current narrative minutes format. This option does not address, cost, efficiency or turnaround issues.
RECOMMENDATION
It is recommended that the City Council adopt the attached resolution.
MARIA QUINONEZ
CHIEF DEPUTY CITY CLERK
RESOLUTION NO. ________________
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON,
CALIFORNIA, APPROVING THE IMPLEMENTATION OF AN ACTION AGENDA
FORMAT FOR CITY COUNCIL MEETINGS TO PROMOTE TRANSPARENCY,
EFFICIENCY, AND ACCOUNTABILITY
WHEREAS, the City Council of the City of Compton is committed to improving transparency, accessibility, and clarity in the conduct of public meetings; and WHEREAS, the City Council of the City of Compton recognizes the importance of maintaining accurate, efficient, and publicly accessible records of its proceedings; and
WHEREAS, transitioning to an action minutes format aligns with modern best practices in municipal governance, reduces transcription time, and ensures that public records focus on the official actions and outcomes of each meeting; and WHEREAS, the action minutes format enhances transparency by highlighting decisions made and increasing the speed with which minutes can be prepared, reviewed, and made available to the public; and
WHEREAS, the City Clerk’s Office recommends adoption of this format beginning with the September 2, 2025 Regular City Council meeting and will ensure compliance with all applicable legal standards under the Ralph M. Brown Act and the California Public Records Act;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF COMPTON, CALIFORNIA, DOES HEREBY RESOLVE AS FOLLOWS:
SECTION 1. The City Council hereby authorizes the City Clerk to implement and maintain Action Minutes as the official record of City Council meetings, effective September 2, 2025.
SECTION 2. Action minutes shall reflect the following:
The date and time of the meeting;
Roll call and quorum status;
Public comment by speaker name only (if applicable);
Agenda item numbers;
Agenda item titles;
Motions, seconds, votes, and official actions taken on each item;
Time of adjournment.
SECTION 3. The City Clerk is directed to update the City's official meeting protocols, manuals, and records policies to reflect this change and to notify the public and relevant departments accordingly.
SECTION 4.This Resolution shall take effect September 2, 2025.
Resolution No._______________
ADOPTED this ________ day of __________________, 2025.
_______________________________
EMMA SHARIF
MAYOR OF THE CITY OF COMPTON
ATTEST:
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
STATE OF CALIFORNIA
COUNTY OF LOS ANGELES: SS
CITY OF COMPTON
I, Satra D. Zurita, City Clerk of the City of Compton hereby certify that the foregoing Resolution was adopted by the City Council of the City of Compton, signed by the Mayor and attested by the City Clerk at a regular meeting thereof held on the ______ day of __________, 2025.
That said resolution was adopted by the following vote, to wit:
AYES: Council Members -
NOES: Council Members -
ABSTAIN: Council Members -
ABSENT: Council Members -
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
July 22, 2025
TO: HONORABLE MAYOR AND COUNCIL MEMBERS FROM: COMPTON FIRE DEPARTMENT
SUBJECT: A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
COMPTON AUTHORIZING THE CITY MANAGER TO ISSUE A
PURCHASE ORDER WITH JANKOVICH COMPANY FOR THE
PURCHASE OF DIESEL FUEL, MOTOR COOLANT AND
MOTOR LUBRICANTS FOR THE COMPTON FIRE
DEPARTMENT ($120,000.00)
SUMMARY
This resolution will authorize the City Manager to establish a purchase order with Jankovich Company for the purchase of diesel fuel, motor oil, transmission fluids and radiator coolants in the amount not to exceed One Hundred Twenty Thousand Dollars and Zero Cents ($120,000.00).
BACKGROUND
The City of Compton Fire Department is responsible for the acquisition of diesel fuel for Fire Department use for emergency vehicles. The Fire Department manages delivery of fuel to the fuel station located at Fire Station 3, 1133 W.
Rosecrans Avenue. The Fire Department conducts daily fuel site inspections to meet local, state and federal reporting requirements and repairs, monitors and maintains the fuel site.
Provision and replacement of diesel fuel, motor oils, transmission oils and radiator coolant are essential to the everyday response of fire apparatus. This resolution will allow the fire department personnel to perform their daily duties and respond to emergencies with emergency apparatus that has been properly maintained. .
STATEMENT OF ISSUE
Staff solicited formal quotes for diesel fuel (Red DF of 3000 Gallons) from three vendors: The Jankovich Company ($2.9467 per gallon), SC Fuels ($3.4914 per gallon) and Wood Oil Company ($3.699 per gallon).
The Fire department has determined that the Jankovich Company will continue to be our preferred vendor for diesel fuel and automotive fluids because Jankovich provided the lowest most responsible quote. Staff is requesting the ability to purchase fuel for fiscal year 2025-2026 for the Fire Department in the amount not to exceed One Hundred Twenty Dollars ($120,000.00).
7.7. The Jankovich Company Staff Report
July 22, 2025; page 2
City Council approval is needed because the expenditure is in excess of $50,000.00 Dollars.
FINANCIAL IMPACT
Funding is available in the Adopted 2025-2026 Fiscal Year Budget in Account 1004-690-000-4228
RECOMMENDATION
It is recommended that the Mayor and City Council adopt the attached Resolution.
RONERICK SIMPSON
FIRE CHIEF
APPROVED FOR FORWARDING
WILLIE A. HOPKINS JR.
CITY MANAGER
RESOLUTION NO. __________
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO ISSUE A PURCHASE ORDER WITH
JANKOVICH COMPANY FOR THE PURCHASE OF DIESEL FUEL, MOTOR
COOLANT AND MOTOR LUBRICANTS FOR THE COMPTON FIRE DEPARTMENT ($120,000.00)
WHEREAS, this resolution will authorize the City Manager to establish a purchase order with Jankovich Company for the purchase of regular and diesel fuel for the City of Compton’s Fire Department; and
WHEREAS, the Fire Department is responsible for the acquisition of diesel fuel and other petroleum products; and
WHEREAS, Diesel Fuel and lubricants are provided by Jankovich Company; and
WHEREAS, staff solicited the following fuel quotes from providers: Jankovich Company ($2.9467 per gallon), SC Fuels($3.4914 per gallon) and Wood Oil ($3.699); and
WHEREAS, the Jankovich Company has provided the lowest most responsible quote; and
WHEREAS, funding for this expenditure is available in the 2025-2026 Fiscal Year Budget in Account Numbers 1004-690-000-4228 in the amounts of One Hundred Twenty Thousand Dollars ($120,000.00).
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF COMPTON DOES
HEREBY RESOLVE AS FOLLOWS:
SECTION 1. That the City Manager is hereby authorized to issue a purchase order to Jankovich Company for the purchase of gasoline and diesel fuel for the City of Compton Fire Department not to exceed One Hundred Twenty Thousand Dollars and Zero Cents, ($120,000.00).
SECTION 2. That funding for this expenditure has been allocated in the Adopted Fiscal Year 2025-2026 Budget in Account Number 1004-690-000-4228 for the City of Compton Fire Department.
SECTION 3. That a copy of this resolution shall be forwarded to the offices of the City Clerk, City Manager, City Attorney, City Controller and the Fire Department.
SECTION 4. That the Mayor shall sign and the City Clerk shall attest to the adoption of this resolution.
ADOPTED this ________ day of ______________ 2025.
_______________________________
EMMA SHARIF
MAYOR OF THE CITY OF COMPTON
Resolution No. __________
ATTEST:
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
STATE OF CALIFORNIA
COUNTY OF LOS ANGELES
CITY OF COMPTON: ss
I, Satra D. Zurita, City Clerk of the City of Compton, hereby certify that the foregoing resolution was adopted by the City Council, signed by the Mayor and attested by the City Clerk at a regular meeting thereof held on the _____ day of ___________, 2025.
That said resolution was adopted by the following vote, to wit:
AYES: COUNCIL MEMBER-
NOES: COUNCIL MEMBER-
ABSENT: COUNCIL MEMBER-
ABSTAIN: COUNCIL MEMBER-
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
July 22, 2025
TO: HONORABLE MAYOR AND COUNCIL MEMBERS
FROM: FIRE CHIEF
SUBJECT: A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE ESTABLISHMENT OF A PURCHASE ORDER FOR
LIFE ASSIST MEDICAL SUPPLIES, INC. FOR THE PURCHASE OF
MEDICAL SUPPLIES AND RELATED EQUIPMENT FOR THE CITY OF
COMPTON FIRE DEPARTMENT ($125,000.00)
SUMMARY
Adoption of this resolution by City Council will authorize the City Manager to establish a purchase order with Life Assist Medical Supplies, Inc. in an amount not to exceed One Hundred Twenty-Five Thousand Dollars ($125,000.00) for Fiscal Year 2025-2026.
BACKGROUND
The Fire Department (“Department”) currently operates three paramedic units, four engine companies and one truck company. The Department responds to approximately 10,000 emergency medical services calls on an annual basis and these units must be stocked at all times with medical supplies and equipment to levels that are needed to provide care for the sick and injured.
STATEMENT_OF_ ISSUE
The Department solicited quotes for various items from three vendors; Life Assist Medical Supplies (Life Assist”), Bound Tree, and Emergency Medical Products (“EMP”):
ITEM DESCRIPTION LIFE ASSIST BOUND TREE EMP
Albuterol $8.74 (30 CT) $2.95 (25 CT) No Response
Blue Sensor Electrodes $10.00 (50CT) $2.98 (10 PK) No Response IV Solution (Dextrose 10%) $5.66 (EA) $2.66 (EA) No Response Lidocaine 2% $2.70 (EA) $51.33 (10 CT) No Response
8.8. Staff Report – Life Assist Medical Supplies, Inc.
July 22, 2025; page 2
On review of the quotes for various needed supplies and equipment, staff has determined that the quotes submitted by Life Assist Medical Supplies, Inc. (“Life Assist”) be accepted due to their responsive, reliable and cost-efficient quote. Additionally, Life Assist is the vendor currently used by the Department and has provided exemplary service along with competitive pricing.
FISCAL IMPACT
Funds for this expenditure will be available in the Adopted 2025-2026 Fiscal year Budget in Account No. 1001-690-000-4260.
RECOMMENDATION
It is recommended that the Mayor and City Council adopt the attached Resolution.
RONERICK D. SIMPSON
FIRE CHIEF
APPROVED FOR FORWARDING:
WILLIE A. HOPKINS JR.
CITY MANAGER
RESOLUTION NO. ____________
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE ESTABLISHMENT OF A PURCHASE ORDER FOR LIFE ASSIST MEDICAL SUPPLIES, INC. FOR THE PURCHASE OF MEDICAL
SUPPLIES AND RELATED EQUIPMENT FOR THE CITY OF COMPTON FIRE DEPARTMENT ($125,000.00)
WHEREAS, the City of Compton Fire Department (”Department”) currently operates three paramedic units, four engine companies and one truck company; and WHEREAS, the Department responds to approximately 10,000 emergency medical services calls on an annual basis and these units must be stocked at all times with medical supplies and equipment to levels that are needed to provide care for the sick and injured; and
WHEREAS, staff solicited quotes for the needed supplies from three (3) vendors; Life Assist Medical Supplies, Bound Tree and Emergency Medical Products (“EMP”):
ITEM DESCRIPTION LIFE ASSIST BOUND TREE EMP
Albuterol $8.74 (30 CT) $2.95 (25 CT) No Response
Blue Sensor Electrodes $10.00 (50CT) $2.98 (10 PK) No Response IV Solution (Dextrose 10%) $5.66 (EA) $2.66 (EA) No Response Lidocaine 2% $2.70 (EA) $51.33 (10 CT) No Response
On review of the quotes for various needed medical supplies and equipment, staff has determined that the quotes submitted by Life Assist Medical Supplies, Inc. (“Life Assist”)
be accepted due to their responsive, reliable and cost-efficient quote. Additionally, Life Assist is the vendor currently used by the Department and has provided exemplary service along with competitive pricing; and
WHEREAS, Life Assist is the vendor currently used by the Department and has provided exemplary service along with competitive pricing; and WHEREAS, funding for this expenditure have been budgeted in the Fire Department’s Adopted 2025-2026 Fiscal Year Budget.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF COMPTON DOES HEREBY RESOLVE AS FOLLOWS:
SECTION 1.That the City Manager is hereby authorized to establish a purchase order for Life Assist Medical Supplies, Inc. in the amount of One Hundred Twenty- Five Thousand Dollars and Zero Cents ($125,000.00).
SECTION 2.That funds for this expenditure are available in the Fire Department’s 2025-2026 Fiscal year budget in Account No. 1001-690-000-4260.
SECTION 3.That a copy of this Resolution shall be forwarded to the offices of the City Clerk, City Manager, Legal Division and the Fire Department.
SECTION 4.That the Mayor shall sign and the City Clerk shall attest to the adoption of this Resolution.
ADOPTED this ______ day of _____________, 2025.
Resolution No. __________
_______________________________
EMMA SHARIF
MAYOR OF THE CITY OF COMPTON
ATTEST:
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
STATE OF CALIFORNIA
COUNTY OF LOS ANGELES
CITY OF COMPTON: ss
I, Satra D. Zurita, City Clerk of the City of Compton, hereby certify that the foregoing Resolution was adopted by the City Council, signed by the Mayor and attested to by the City Clerk, at a regular meeting thereof held on the ____ day of _________________, 2025.
That said Resolution was adopted by the following vote, to wit:
AYES: COUNCIL MEMBERS-
NOES: COUNCIL MEMBERS-
ABSTAIN: COUNCIL MEMBERS-
ABSENT: COUNCIL MEMBERS-
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
July 22, 2025
TO: HONORABLE MAYOR AND CITY COUNCIL MEMBERS
FROM: COMPTON FIRE DEPARTMENT
SUBJECT: A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO ISSUE PURCHASE ORDERS TO ONE
OR MORE VENDORS (BIT PROS FIRE SERVICES, WILLIAM KALVIKOV DBA
FIRE APPARATUS SOLUTIONS AND RENEWELL FLEET SERVICE) FOR
MAINTENANCE AND REPAIRS OF EMERGENCY FIRE APPARATUS FOR THE CITY OF COMPTON FIRE DEPARTMENT ($150,000.00)
SUMMARY
This resolution will authorize the City Manager to issue purchase orders to one or more vendors (Bit Pros Fire Services, William Kalvikov DBA Fire Apparatus Solutions and ReNewell Fleet Service.) for the maintenance and repair services of the Compton Fire Department’s emergency apparatus in the amount not to exceed One Hundred Fifty Thousand Dollars ($150,000.00).
BACKGROUND
The City of Compton (” City”) recently purchased four (4) new fire engines and one (1) ladder truck and are now in service. The City’s reserve fleet has four (4) engines and one (1) ladder truck and due to the high volume of emergency responses as well as the conditions of the City streets, the cost of repairs are increasing.
Annual apparatus maintenance and repair for the Compton Fire Department’s (“Department”) emergency vehicles are essential for the safe and efficient emergency response and operation.
The Department performs routine apparatus and equipment inspections on all apparatus daily to ensure that preventive maintenance guidelines are adhered to and that there are no defects with reference to fire engine operations. Furthermore, all vehicles are required to meet the Department of Transportation and California Highway Patrol regulatory statutes concerning emergency vehicles.
STATEMENT OF ISSUE
Staff has requested quotes from the following vendors:
DESCRIPTION
FIRE
APPARATUS
SOLUTIONS
BIT PROS FIRE
SERVICES
RENEWELL
FLEET SERVICE
Preventive
Maintenance
Service $125.00 per hr. N/A $195.00 per hr.
9.9. Emergency Vehicle Services & Maintenance Staff Report July 22, 2025, page 2
Repair Service $145.00 per hr. $150.00 per hr. $195.00 per hr.
Staff is requesting the ability to use one or more vendors (Bit Pros Fire Services, William Kalvikov DBA Fire Apparatus Solutions and ReNewell Fleet Service for its maintenance and repair of emergency fire apparatus. This will allow the Department flexibility to submit our emergency fire apparatus to the company whom is not as inundated with work, thus creating a faster turnaround time. The City has no vendor in the City boundaries that provide maintenance and repairs for emergency fire apparatus.
City Council approval is needed because the expenditure is in excess of $25,000.00 Dollars.
FISCAL IMPACT
The estimated cost for maintenance and repair to the Department’s emergency apparatus for Fiscal Year 2025-2026 is One Hundred Fifty Thousand Dollars ($150,000.00).
Funds for this expenditure will be available in the 2025-2026 Fiscal Year budget in Account No. 6000-690-000-4229.
RECOMMENDATION
It is recommended that the Mayor and City Council adopt the attached Resolution.
RONERICK D. SIMPSON
FIRE CHIEF
APPROVED FOR FORWARDING:
WILLIE A. HOPKINS JR.
CITY MANAGER
RESOLUTION NO. ___________
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO ISSUE PURCHASE ORDERS TO
ONE OR MORE VENDORS (BIT PROS FIRE SERVICES, WILLIAM
KALVIKOV DBA FIRE APPARATUS SOLUTIONS AND RENEWELL FLEET
SERVICE) FOR MAINTENANCE AND REPAIRS OF EMERGENCY FIRE
APPARATUS FOR THE CITY OF COMPTON FIRE DEPARTMENT
($150,000.00)
WHEREAS,this resolution will authorize the City Manager to establish purchase orders to one or more vendors (Bit Pros Fire Services, William Kalvikov DBA Fire Apparatus Solutions and ReNewell Fleet Service for the maintenance and repairs of emergency fire apparatus’ vehicles for the City of Compton’s Fire Department; and
WHEREAS, the annual apparatus maintenance and repairs for the Compton Fire Department’s (“Department”) emergency vehicles are essential for safe and efficient emergency response and operation; furthermore, all vehicles are required to meet the Department of Transportation and California Highway Patrol regulatory statutes concerning emergency vehicles; and
WHEREAS, the City’s fire engines and trucks are experiencing a higher level of repairs and maintenance due to the high volume of emergency responses and the City Streets in need of repair, the overall repair costs are increasing; and WHEREAS, three (3) formal bids were sought with the following results:
DESCRIPTION
FIRE APPARATUS
SOLUTIONS
BIT PROS FIRE
SERVICES
RENEWELL
FLEET
SERVICE
Preventive
Maintenance
Service $125.00 per hr. N/A $195 per hr.
Repair Service $145.00 per hr. $150.00 per hr. $195 per hr.
WHEREAS, Staff is requesting the authority to use one or more vendors (Bit Pros Fire Services, William Kalvikov DBA Fire Apparatus Solutions and ReNewell Fleet Service for its maintenance and repair of emergency fire apparatus. This will allow the Department to have a quicker turnaround time for the emergency fire apparatus from being out of service. The City has no vendor in the City boundaries that provide maintenance and repairs for emergency fire apparatus; and WHEREAS, the estimated cost for maintenance and repairs to the Department’s emergency fire apparatus for the Fiscal Year 2025-2026 is not to exceed One Hundred Fifty Thousand Dollars and Zero Cents ($150,000.00); and WHEREAS, funds in the amount of One Hundred Fifty Thousand Dollars and Zero Cents ($150,000.00) will be available for this expenditure in the Account no. 6000-690-000-4229.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF COMPTON DOES HEREBY RESOLVE AS FOLLOWS:
Section 1. That the City Manager is hereby authorized to issue purchase orders to one or more vendors (Bit Pros Fire Services, William Kalvikov DBA Fire Apparatus Solutions and ReNewell Fleet Service.) in an amount not to exceed One Hundred Fifty Thousand Dollars and Zero Cents ($150,000.00).
Resolution No. __________
Section 2. That funding for this expenditure has been allocated in the Fire Department’s 2025-2026 Fiscal Year budget in Account No. 6000-690-000-4229.
Section 3. That a copy of this Resolution shall be filed in the offices of the City Clerk, City Manager, Legal Division, City Controller and the Fire Department.
Section 4. That the Mayor shall sign and the City Clerk shall attest to the adoption of this Resolution.
ADOPTED this _______ day of _____________, 2025
_______________________________
EMMA SHARIF
MAYOR OF THE CITY OF COMPTON
ATTEST:
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
STATE OF CALIFORNIA
COUNTY OF LOS ANGELES
CITY OF COMPTON: ss
I, Satra D. Zurita, City Clerk of the City of Compton, hereby certify that the foregoing Resolution was adopted by the City Council, signed by the Mayor, and attested to by the City Clerk at a regular meeting thereof held on the _____ day of ___________________, 2025.
That this Resolution was adopted by the following vote, to wit:
AYES: COUNCIL MEMBER –
NOES: COUNCIL MEMBER –
ABSTAIN:COUNCIL MEMBER –
ABSENT: COUNCIL MEMBER –
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
JULY 22, 2025
TO: HONORABLE MAYOR AND CITY COUNCIL MEMBERS
FROM: WILLIE A. HOPKINS, JR.
CITY MANAGER
SUBJECT: A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
COMPTON AUTHORIZING THE CITY MANAGER TO APPROVE A
PURCHASE ORDER TO ROBERT HALF NOT TO EXCEED $17,178.52
FOR THE PURPOSE OF PAYING OUTSTANDING INVOICES FOR
STAFFING SERVICES FOR THE HUMAN RESOURCES DEPARTMENT
SUMMARY
Adoption of this resolution will authorize the City Manager to establish a purchase order to Robert Half for the purpose of paying outstanding invoices for staffing services for the Human Resources Department.
BACKGROUND
Robert Half is a staffing and recruiting agency that provides services to companies to contract employees for the purpose of convenient and timely temporary staffing. The Human Resources Department at the City of Compton utilized these services during Fiscal Year 2024-2025 to temporarily fill existing vacancies within the Department. These services are no longer utilized within the Department and the employees are no longer contracted with Robert Half. There will be no further intention of contracting with the company in this Fiscal Year (2025-2026).
STATEMENT OF ISSUE
Robert Half was utilized during Fiscal Year 2024-2025 temporarily staff various vacancies within the Human Resources Department. These employees are no longer contracted with Robert Half.
Due to the volume of investigative services and other standing contracts, the Human Resources Department underestimated its budget for Fiscal Year 2024–2025. Law firms and legal services were prioritized for payment, resulting in staffing service invoices from that fiscal year exceeding available funds and remaining outstanding. Consequently, invoices regarding these staffing services exceeded and remained outstanding from last Fiscal Year (2024-2025).
Furthermore, pursuant to Resolution 26,100 (July 23, 2024), the City Manager’s authority has surpassed the single spending limit in addition to the emergency spending threshold for Robert Half; thus, the City Council’s approval was required for this item.
10.10.10. STAFF REPORT – RESOLUTION TO APPROVE A PURCHASE ORDER TO ROBERT HALF FOR THE
HUMAN RESOURCES DEPARTMENT
JULY 22, 2025
PAGE 2
FISCAL IMPACT
There will be a low fiscal impact as a result from paying outstanding invoices from Robert Half. Funds for the total amount of $17,178.52 of all expenditures and invoices are available in the current Fiscal Year (2025-2026) budget from Account 1001-560-000-4266 (Human Resources – Contract Services).
RECOMMENDATION
It is recommended that the City Council approve and adopt the attached Resolution to pay all outstanding invoices for Robert Half from for the Human Resources Department.
TAQUAN J. JONES
HUMAN RESOURCES DEPARTMENT
APPROVED FOR FORWARDING:
WILLIE A. HOPKINS, JR.
CITY MANAGER
RESOLUTION NO._____________
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO APPROVE A PURCHASE ORDER TO ROBERT HALF NOT TO EXCEED $17,178.52 FOR THE PURPOSE OF
PAYING OUTSTANDING INVOICES FOR STAFFING SERVICES FROM FOR THE
HUMAN RESOURCES DEPARTMENT
WHEREAS, pursuant to Resolution 26,100 of July 23, 2024, the City Manager’s single transaction limit is $75,000 and his emergency spending limit is $200,000; and WHEREAS, Robert Half is a staffing and recruiting agency that provides services to companies to contract employees for the purpose of convenient and timely temporary staffing; and
WHEREAS, the Human Resources Department at the City of Compton utilized these services during Fiscal Year 2024-2025 to temporarily fill existing vacancies within the Department; and
WHEREAS, these services are no longer utilized within the Department and the employees are no longer contracted with Robert Half, with no further Departmental intention of contracting with the company for this Fiscal Year (2025-2026); and WHEREAS, due to the mass of investigative services and other standing contracts, funds were underestimated for the budget of the Human Resources Department during Fiscal Year 2024-2025, as law firms and legal services were prioritized in terms of invoicing; and
WHEREAS, outstanding invoices from Robert Half for previous staffing services exceeded, as the City Manager’s authority of Resolution 26,100 surpassed the single spending limit in addition to the emergency spending threshold; and WHEREAS, funds for these invoices are available within the current Fiscal Year (2025-2026) budget and will be paid out of Account 1001-560-000-4266 (Human Resources – Contract Services).
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF COMPTON DOES HEREBY RESOLVE AS FOLLOWS:
SECTION 1. That the City Manager is hereby authorized to approve a Purchase Order not to exceed Seventeen Thousand, One Hundred, Seventy-Eight Dollars, and Fifty-Two Cents ($17,178.52) from Account 1001-560-000-4266 (Human Resources – Contract Services) to Robert Half for the purpose of paying outstanding invoices regarding staffing services from for the Human Resources Department.
SECTION 2. That funds for the total amount of all invoices is available in the current Fiscal Year (2025-2026) budget of the Human Resources Department.
SECTION 3. Copies of this Resolution shall be filed in the offices of the City Manager, City Clerk, City Controller, Legal Division, and Human Resources Department.
SECTION 4. The Mayor shall sign and the City Clerk shall attest to the adoption of this Resolution.
RESOLUTION NO. ______________
PAGE 2
ADOPTED this _______ day of ___________, 2025.
_______________________________
EMMA SHARIF
MAYOR OF THE CITY OF COMPTON
ATTEST:
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
STATE OF CALIFORNIA
COUNTY OF LOS ANGELES
CITY OF COMPTON: SS
I, Satra D. Zurita, City Clerk of the City of Compton, hereby certify that the foregoing resolution was adopted by the City Council of the City of Compton, signed by the Mayor, and attested by the City Clerk at a regular meeting thereof held on the _______ day of _________________, 2025.
That said resolution was adopted by the following vote, to wit:
AYES: COUNCIL MEMBERS-
NOES: COUNCIL MEMBERS-
ABSTAIN: COUNCIL MEMBERS-
ABSENT: COUNCIL MEMBERS-
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
July 22, 2025
TO: HONORABLE MAYOR AND CITY COUNCIL MEMBERS
FROM: CITY MANAGER
SUBJECT: A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO ISSUE A PURCHASE ORDER
TO THE GATEWAY CITIES COUNCIL OF GOVERNMENTS FOR
PARTICIPATION IN THE I-710 CORRIDOR PLANNING ACTIVITIES AND EIR/EIS AND THE 91/605/405 MAJOR CORRIDOR STUDY FOR FY 2025- 2026 IN AN AMOUNT NOT TO EXCEED $45,000
SUMMARY
This report recommends that the City Council authorize the City Manager to issue a purchase order to the Gateway Cities Council of Governments (GCCOG) in an amount not to exceed $45,000 for continued participation in two regional planning efforts: the I- 710 Corridor Planning Activities and Environmental Impact Report/Environmental Impact Statement (EIR/EIS) and the 91/605/405 Major Corridor Study for Fiscal Year 2025-2026.
BACKGROUND
I-710 Corridor Planning Activities and EIR/EIS
The I-710 Corridor is a critical goods movement and commuter freeway that affects congestion, air quality, environmental justice, safety, and multi-modal access throughout the region. The GCCOG, in partnership with Caltrans, the Los Angeles County Metropolitan Transportation Authority (LA Metro), and the Southern California Association of Governments (SCAG), entered into a Memorandum of Understanding (MOU) in April 2008 to govern and fund the I-710 Corridor Planning Activity and EIR/EIS.
Two key oversight bodies were established under the MOU: the I-710 EIR/EIS Project Committee and the I-710 Executive Committee. These committees ensure that member cities – including Compton – have meaningful input into the planning process and that local impacts are addressed.
91/605/405 Major Corridor Study
The SR-91/I-605/I-405 Corridor includes 15 cities with shared and unique transportation challenges. The Major Corridor Study evaluates long-term mobility needs and potential multimodal improvements across these freeways, with a focus on addressing the impacts of freight growth, air quality degradation, and freeway widening on local communities.
11.11.11. July 22, 2025
Staff Report - Gateway Cities Council of Governments
Participation in this study ensures that the City of Compton’s concerns are represented and helps shape regional infrastructure investments that align with the City’s mobility, equity, and environmental goals.
STATEMENT OF THE ISSUE
To remain actively engaged in both corridor planning processes, the City must contribute its annual participation fees. These efforts directly influence future infrastructure, funding opportunities, and environmental outcomes in Compton.
City Council approval is required to authorize the City Manager to issue the necessary purchase order to GCCOG.
FISCAL IMPACT
The total participation cost for Fiscal Year 2025-2026 is $45,000, as outlined below:
I-710 Corridor Planning Activities and EIR/EIS $ 25,000.00 91/605/405 Major Corridor Study $ 20,000.00
Total $ 45,000.00
Funding is available in the Public Works Engineering Department FY 2025-2026 budget, Account No. 1900-710-000-4262.
ALTERNATIVES
If the City chooses not to participate in these planning efforts, it risks:
Losing its voice in shaping transportation improvements. Being excluded from key regional planning discussions. Missing out on future state, federal, and regional transportation funding opportunities.
July 22, 2025
Staff Report - Gateway Cities Council of Governments
RECOMMENDATION
It is recommended that the City Council adopt the attached resolution authorizing the City Manager to issue a purchase order to the Gateway Cities Council of Governments in the amount of $45,000 for Fiscal Year 2025-2026.
JACK H. GONG, P.E., S.E., PMP
CITY ENGINEER
APPROVED AS TO FORWARDING:
WILLIE A. HOPKINS, JR.
CITY MANAGER
RESOLUTION NO. ___________
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
AUTHORIZING THE CITY MANAGER TO ISSUE A PURCHASE ORDER TO
GATEWAY CITIES COUNCIL OF GOVERNMENTS FOR PARTICIPATION IN THE I-710 CORRIDOR PLANNING ACTIVITIES AND EIR/EIS AND THE 91/605/405 MAJOR CORRIDOR STUDY FOR FY 2025-2026 IN AN AMOUNT NOT TO EXCEED $45,000
WHEREAS, adoption of this Resolution authorizes the City Manager to issue a purchase order to the Gateway Cities Council of Governments (GCCOG) in an amount not to exceed Forty-Five Thousand Dollars ($45,000) for participation in the I-710 Corridor Planning Activities and Environmental Impact Report/Environmental Impact Statement (EIR/EIS) and the 91/605/405 Major Corridor Study for Fiscal Year 2025- 2026; and
WHEREAS, the GCCOG is tasked with advancing transportation planning within the sub-region and advocating for both local and regional transportation improvements.
One of its top priorities is the comprehensive study and eventual improvement of the I-710 Freeway Corridor, which is essential in addressing congestion, air quality, goods movement, safety, environmental justice, and multimodal access; and WHEREAS, to this end, the GCCOG entered into a Memorandum of Understanding (MOU) in April 2008 with Caltrans, the Los Angeles County Metropolitan Authority (LA Metro), and the Southern California Association of Governments (SCAG); and WHEREAS,this MOU established a multi-jurisdiction governance and funding structure to implement the I-710 Planning Activities and EIR/EIS and created two governing bodies: the I-710 EIR/EIS Project Committee and the I-710 Executive Committee. Both committees include representatives from local jurisdictions and ensure that impacted communities, such as Compton, have a voice in the planning and environmental review process; and
WHEREAS,the SR-91/I-605/I-405 Corridor includes fifteen (15) separate communities, each with unique needs, concerns and cultures of community involvement. These communities also share common concerns, such as the impact of future freight growth on mobility, air quality, economic viability, and the potential property impacts from any proposed freeway widening; and
WHEREAS, the study provides a foundation for understanding the mobility demands along the three freeway corridors, the full range of multimodal improvement needs, and how such projects should be shaped to accommodate the priorities and concerns of the Gateway Cities subregion; and
WHEREAS,in order for the City of Compton to continue participating and providing input and feedback regarding how these studies may affect the community, annual fees must be paid to the Gateway Cities Council of Governments; and WHEREAS, the total cost for continued participation for FY 2025-2026 is as follows:
I-710 Corridor Planning Activities and EIR/EIS $ 25,000.00 91/605/405 Major Corridor Study $ 20,000.00
Total $ 45,000.00
WHEREAS,funding in the amount of Forty-Five Thousand Dollars ($45,000) is available in Public Works Engineering Department’s Fiscal Year 2025-2026 budget under Account No. 1900-710-000-4262; and
RESOLUTION NO. ____________
PAGE 2
WHEREAS,to maintain active involvement in the I-710 and 91/605/405 planning efforts, the City must pay its annual participation fees. Continued participation ensures that the City of Compton remains engaged in shaping major transportation decisions that directly affect its residents, infrastructure, and environmental conditions; and WHEREAS,City Council authorization is required to allow the City Manager to issue a purchase order for the purpose of covering the City’s share of participation fees in the above-mentioned studies.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF COMPTON DOES HEREBY RESOLVE AS FOLLOWS:
SECTION 1. That the City Manager is hereby authorized to issue a purchase order to the Gateway Cities Council of Governments (GCCOG) in an amount not to exceed Forty-Five Thousand Dollars ($45,000.00) for the City’s continued participation in the I-710 Corridor Planning Activities and EIR/EIS and the 91/605/405 Major Corridor Study for Fiscal Year 2025-2026.
SECTION 2. That the necessary funds are available in the Public Works Engineering Department’s Fiscal Year 2025-2026 budget, Account Number 1900-710- 000-4262.
SECTION 3. That a copy of this Resolution shall be filed in the offices of the City Manager, City Controller, City Clerk and Public Works Engineering Department.
SECTION 4. That the Mayor shall sign and the City Clerk shall attest to the adoption of this Resolution.
ADOPTED this _________ day of ______________________, 2025. ___________________________________
EMMA SHARIF
MAYOR OF THE CITY OF COMPTON
ATTEST:
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
RESOLUTION NO. ____________
PAGE 3
STATE OF CALIFORNIA
COUNTY OF LOS ANGELES
CITY OF COMPTON
I, Satra D. Zurita, City Clerk of the City of Compton, hereby certify that the foregoing resolution was adopted by the City Council, signed by the Mayor and attested by the City Clerk at a regular meeting thereof held on the __________ day of ____________________ 2025.
That said resolution was adopted by the following vote to wit:
AYES: COUNCIL MEMBERS-
NOES: COUNCIL MEMBERS-
ABSENT: COUNCIL MEMBERS-
ABSTAIN: COUNCIL MEMBERS-
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
July 22, 2025
TO: HONORABLE MAYOR AND COUNCIL MEMBER
FROM: CITY MANAGER
SUBJECT: REQUEST TO AUTHORIZE TRAVEL FOR ELECTED
OFFICIALS
Recommendation: Authorize travel to attend the 54th Congressional Black Caucus Annual Legislative Conference
Location: Washington, D.C.
Meeting Date: September 24, 2025 thru September 28, 2025 Approximate Cost: Registration: $200
Hotel: $347 per night (plus taxes and fees)
Transportation: $907.36
Per Diem: Receipts required (Not to exceed $75 per day) Source of Funds: General Fund
Purpose: The purpose of attending the Annual Congressional Black Caucus is to learn and discuss issues that are impacting our City. The Annual Legislative Conference is a unique platform where thought leaders, legislators, and citizens forge
partnerships and promote the political, economic, and social advancement of Black Communities.
Elected Official Attending
Mayor Emma Sharif
Councilmember Deidre M. Duhart
Councilmember Andre Spicer
Councilmember Jonathan Bowers
Councilmember Lillie Darden
12. July 15, 2025
TO: HONORABLE MAYOR AND CITY COUNCIL MEMBERS
FROM: CITY MANAGER
SUBJECT: A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
COMPTON APPROVING THE UPDATED SANITARY SEWER
MANAGEMENT PLAN IN COMPLIANCE WITH STATE
WATER RESOURCES CONTROL BOARD ORDER NO. 2022-
0103-DWQ
SUMMARY
Staff recommends that the City Council adopt a resolution approving the City of Compton’s updated Sanitary Sewer Management Plan (SSMP), dated January 2025, which has been prepared in accordance with the requirements of the State Water Resources Control Board (SWRCB) Order No. 2022-0103-DWQ. This action is necessary to maintain compliance with updated state regulations and demonstrates the City’s continued response to prior enforcement actions.
BACKGROUND
The City of Compton owns and operates a public sanitary sewer collection system that serves residential, commercial, and industrial users. Collected wastewater is conveyed to the Joint Water Pollution Control Plant operated by the Los Angeles County Sanitation District.
The SWRCB Order No. 2022-0103-DWQ, which became effective in June 2023, replaces and updates the previous General Waste Discharge Requirements (WDRs) governing the operation and maintenance of public sanitary sewer systems. The updated order establishes stricter requirements for public agencies operating sewer systems, including the following mandates for all permittees:
Maintain and regularly update a Sanitary Sewer Management Plan (SSMP) Implement best management practices to minimize and eliminate Sanitary Sewer Overflows (SSOs)
Report all SSOs and corrective actions to the state
Audit and revise the SSMP at least every five years or as needed
13.13.13.13. Staff Report – A Resolution of the City Council of the City of Compton Approving the Sanitary Sewer Management Plan in Compliance with State Water Resources Control Board Order NO. 2022-0103-DWQ
July 15, 2025, Page 2 of 3
In 2016, the City entered into a Consent Judgment with the Los Angeles Regional Water Quality Control Board, requiring corrective actions to address sanitary sewer overflows and improve overall compliance. Since then, the City has made substantial progress in upgrading sewer infrastructure and enhancing maintenance protocols. The updated SSMP reflects this progress and fulfills a key requirement of ongoing regulatory compliance under both the Consent Judgment and Order No. 2022-0103-DWQ.
STATEMENT OF ISSUE
The updated SSMP was prepared in accordance with the State Water Resources Control Board Order No. 2022-0103-DWQ, adopted December 6, 2022. It includes the following required elements:
Goal and Objectives - Articulates the City’s commitment to effective sewer system management
Organization - Identifies City staff rolls and responsibilities Legal Authority – Documents the City’s power to enforce sewer use regulations
Operation and Maintenance Program – Outlines preventative and routine maintenance practices
Design and Performance Provisions – Establishes technical design standards
Spill Emergency Response Plan – Details procedures for rapid response to SSOs
FOG Control Program – Includes strategies to minimize fats, oils, and grease blockages
Capacity Evaluation and Capital Improvements – Describes planning for system reliability and expansion
Monitoring and Program Modifications – Sets benchmarks and update mechanisms
SSMP Audits – Ensures periodic internal compliance review Communication Program – Promotes public and interagency engagement City Staff has conducted a comprehensive review and has determined to be in full compliance with the updated Order. Following Council approval, the City’s Legally Responsible Official (LRO) will certify the SSMP and upload it to the California Integrated Water Quality System (CIWQS) database, as required by the State Water Board.
Staff Report – A Resolution of the City Council of the City of Compton Approving the Sanitary Sewer Management Plan in Compliance with State Water Resources Control Board Order NO. 2022-0103-DWQ
July 15, 2025, Page 3 of 3
ALTERNATIVE
Staff recommends no alternative action, as approval of the SSMP is required to remain in compliance with the State Water Board’s current permit conditions.
FISCAL IMPACT
There is no immediate fiscal impact associated with this approval. However, costs related to SSMP implementation – such as capital upgrades, staffing, or emergency response – will be evaluated and addressed through future budget processes and capital planning efforts.
RECOMMENDATION
Staff recommends that the City Council adopt the attached resolution approving the updated Sanitary Sewer Management Plan and authorizing the City’s Legally Responsible Official (LRO) to certify and submit the plan to the State Water Resources Control Board through the CIWQS system.
JACK GONG, P.E., S.E., PMP
CITY ENGINEER
APPROVED FOR FORWARDING:
WILLE A. HOPKINS, JR.
CITY MANAGER
RESOLUTION NO._________
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON
APPROVING THE UPDATED SANITARY SEWER MANAGEMENT PLAN IN
COMPLIANCE WITH STATE WATER RESOURCES CONTROL BOARD
ORDER NO. 2022-0103-DWQ
WHEREAS, the State Water Resources Control Board adopted Order No. 2022- 0103-DWQ, the Statewide General Waste Discharge Requirements for Sanitary Sewer Systems, on December 6, 2022; and
WHEREAS, this Order requires all public agencies that own or operate sanitary sewer systems greater than one mile in length to develop and maintain a Sanitary Sewer Management Plan (SSMP) that meets the provisions and performance criteria outlined in the Order; and
WHEREAS, the City of Compton owns and operates a sanitary sewer system subject to the requirements of Order No. 2022-0103-DWQ; and WHEREAS, the City has prepared an updated SSMP that includes all required elements, including goals, organization, legal authority, operations and maintenance program, design and performance provisions, overflow emergency response plan, FOG control program, system evaluation and capacity assurance plan, monitoring, measurement and program modifications, SSMP audits, and communication program; and
WHEREAS, the SSMP has been reviewed by City staff and determined to be in full compliance with the requirements of Order No. 2022-0103-DWQ; and WHEREAS, the SSMP reflects the City’s ongoing efforts to maintain regulatory compliance, prevent sanitary sewer overflows (SSOs), and improve system reliability through effective planning, maintenance, and community engagement; and WHEREAS, the SSMP must be approved by the City Council and certified by a Legally Responsible Official (LRO) prior to submittal to the California Integrated Water Quality System (CIWQS) database.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF COMPTON DOES HEREBY RESOLVE AS FOLLOWS:
SECTION 1.The City Council hereby approves the updated Sanitary Sewer Management Plan, dated January 2025, prepared in accordance with the requirements of State Water Resources Control Board Order No. 2022-0103-DWQ.
SECTION 2.The City Council authorizes the City Engineer, or their designated representative serving as the Legally Responsible Official (LRO), to certify and submit the approved SSMP to the State Water Resources Control Board through the CIWQS Sanitary Sewer System Database.
SECTION 3.The City Council directs staff to implement the SSMP and update it as required by the Order, including conduct internal audits of the SSMP at least once every three years and perform updates at least once every six years, or more frequently if required due to system changes, regulatory revisions, or significant performance issues.
SECTION 4.The City Clerk shall file copies of this Resolution with the offices of the City Manager, City Controller, City Attorney and the Public Works Engineering Department.
SECTION 5.The Mayor shall sign and the City Clerk shall attest to the adoption of this Resolution.
Resolution No. __________
SECTION 6.The City Council encourages staff to make the SSMP available to the public on the City’s website and through ongoing public outreach, to promote transparency and community understanding of the City’s wastewater system management efforts.
ADOPTED this ________ day of ________________, 2025.
_______________________________
EMMA SHARIF
MAYOR OF THE CITY OF COMPTON
ATTEST:
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
STATE OF CALIFORNIA
COUNTY OF LOS ANGELES
CITY OF COMPTON: ss
I, Satra D. Zurita, City Clerk of the City of Compton, hereby certify that the foregoing Resolution was adopted by the City Council of the City of Compton, signed by the Mayor and attested by the City Clerk, at a regular meeting thereof, held on the __________ day of ___________________, 2025.
That said Resolution was adopted by the following vote, to wit:
AYES: COUNCILMEMBERS-
NOES: COUNCILMEMBERS-
ABSTAIN: COUNCILMEMBERS-
ABSENT: COUNCILMEMBERS-
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
City of Compton
Sewer System Management Plan California
State Water Resources Control Board
JUNE 2025
Prepared for:
CITY OF COMPTON PUBLIC WORKS DEPARTMENT
205 South Willowbrook Avenue
Compton, CA 90220
Contact: John Strickland, Project Manager
CITY OF COMPTON / SEWER SYSTEM MANAGEMENT PLAN
JANUARY 2025 1
Table of Contents
SECTION PAGE NO.
Acronyms and Abbreviations .......................................................................................................................................i Definitions ..................................................................................................................................................................ii Purpose and Background ............................................................................................................................................v Elements of a SSMP ....................................................................................................................................................v 1 SSMP Goal & Introduction..............................................................................................................................1
1.1 Regulatory Context ...........................................................................................................................1
1.2 Sewer System Management Plan Update Schedule ..........................................................................2
1.3 Sewer System Asset Overview ..........................................................................................................3 2 Organization ..................................................................................................................................................5
2.1 Name of Legally Responsible Official ................................................................................................5
2.2 Department Organization .................................................................................................................5
2.3 Roles and Responsibilities .................................................................................................................7
2.4 Chain of Communication ..................................................................................................................9 3 Legal Authority ............................................................................................................................................12
3.1 Compliance Documents ..................................................................................................................12
3.1.1 Municipal Code ..................................................................................................................12
3.2 Compliance Summary .....................................................................................................................12
3.2.1 Prevention of Illicit Discharges............................................................................................13
3.2.2 Storm Water Agency Collaboration....................................................................................14
3.2.3 Proper Design and Construction of Sewers and Connections ..............................................15
3.2.4 Lateral Maintenance Access ...............................................................................................15
3.2.5 Enforcement Measures.......................................................................................................15
3.2.6 Easement Accessibility Agreements ...................................................................................15 4 Operation and Maintenance Program ..........................................................................................................16
4.1 Updated Map of Sanitary Sewer System .........................................................................................16
4.2 Preventive Operation and Maintenance Activities ...........................................................................17
4.2.1 Sewer Cleaning & CCTV Inspection.....................................................................................17
4.2.2 Visual Inspection ................................................................................................................18
4.2.3 Odor Control ......................................................................................................................19
4.2.4 Corrosion Control ...............................................................................................................19
4.2.5 Investigation of Customer Complaints................................................................................19
4.2.6 Data Collection ..................................................................................................................19
4.3 Training...........................................................................................................................................19
CITY OF COMPTON / SEWER SYSTEM MANAGEMENT PLAN
JANUARY 2025 II
4.4 Equipment Inventory ......................................................................................................................20 5 Design and Performance Provisions .............................................................................................................21
5.1 Updated Design Criteria and Construction Standards and Specifications ........................................21
5.2 Procedures and Standards ..............................................................................................................22 6 Spill Emergency Response Plan....................................................................................................................23
6.1 Background.....................................................................................................................................23
6.2 Known Collection System Problems................................................................................................24
6.3 Causes of Sewer Backups ................................................................................................................24
6.4 Preventative Maintenance ..............................................................................................................24
6.5 Spill Detection ................................................................................................................................24
6.6 Initial Spill Response .......................................................................................................................25
6.6.1 Containment Procedures ...................................................................................................25
6.6.2 Sewer Bypassing ................................................................................................................25
6.7 Recovery and Clean-Up (Mitigation)................................................................................................25
6.8 Summary of Notification, Reporting, Monitoring, and Recordkeeping Requirements......................27
6.8.1 Notification and Reporting Requirements ..........................................................................28
6.9 Notification .....................................................................................................................................34
6.10 Reporting ........................................................................................................................................34
6.11 Monitoring ......................................................................................................................................34
6.12 Spill-Specific Monitoring Requirements ..........................................................................................34
6.12.1 Spill Location and Spread ...................................................................................................34
6.12.2 Spill Volume Estimation .....................................................................................................35
6.13 Public Access and Warning ..............................................................................................................35
6.14 Investigation and Documentation ...................................................................................................35
6.14.1 Recordkeeping Requirements ............................................................................................35
6.14.2 Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills ...............................36
6.14.3 Sewer System Telemetry Records ......................................................................................38
6.14.4 Sewer System Management Plan Implementation Records ...............................................38
6.14.5 Audit Records.....................................................................................................................38
6.14.6 Equipment Records ............................................................................................................38
6.14.7 Work Orders.......................................................................................................................38
6.15 Post Spill Assessment......................................................................................................................38
6.16 Annual Review ................................................................................................................................39
6.17 Annual Report .................................................................................................................................39
6.18 Spill Response Equipment ...............................................................................................................39
6.19 Training...........................................................................................................................................39 7 Sewer Pipe Blockage Control Program.........................................................................................................40 8 System Evaluation, Capacity Assurance, and Capital Improvements ............................................................43
8.1 System Evaluation and Condition Assessment ................................................................................44
CITY OF COMPTON / SEWER SYSTEM MANAGEMENT PLAN
JANUARY 2025 III
8.2 Capacity Assessment and Design Criteria........................................................................................46
8.3 Prioritization of Corrective Action ...................................................................................................46
8.4 Capital Improvement Plan ...............................................................................................................47 9 Monitoring, Measurement and Program Modifications ................................................................................48 10 Internal Audits..............................................................................................................................................55 11 Communication Program .............................................................................................................................56 12 Supporting Documentation..........................................................................................................................58 Appendix A The Reissued WDR: Order Number WQ 2022-0103-DWQ Appendix B 2016 Consent Judgement
Appendix C Chapter 23 (Sewer and Water) of the City Municipal Code Appendix D Updated Sewer Collection System Map
Appendix E Sanitary Spill Monitoring Plan
Appendix F Notification Requirements NOTIFICATION REQUIREMENTS F-1 Notification of Spills of 1,000 Galloons or Greater to the California Office of Emergency Services .......................................................................................................................F-1 F-2 Spill Notification Information .........................................................................................................F-1 F-3 Notification of Spill Report Updates...............................................................................................F-2 Appendix G Reporting Requirements REPORTING REQUIREMENTS G-1 Reporting Requirements for Individual Category 1 Spill Reporting.................................................G-1 G-2 Reporting Requirements for Individual Category 2 Spill Reporting ................................................G-5 G-3 Monthly Certified Spill Reporting for Category 3 Spills...................................................................G-7 G-4 Monthly Certified Spill Reporting for Category 4 Spills ..................................................................G-9 G-5 Amended Certified Spill Reports for Category 3 Spills ...................................................................G-9 G-6 Annual Certified Spill Reporting of Category 4 and/or Lateral Spills...............................................G-9 G-7 Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” ................................................................................................................................G-9 G-8 Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ) ........................................................................................................................G-10 Appendix H Sewer System Management Plan Change Log
Appendix I SSMP Monitoring Parameters
Appendix J SSMP Audit Recommendation Log
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TABLES
Table 1.1: SSMP Update Schedule...............................................................................................................................2 Table 1.2: Sewer System Assets ..................................................................................................................................3 Table 2.1: Key Staff Roles ............................................................................................................................................7 Table 2.2: Department Roles & Responsibilities...........................................................................................................7 Table 2.3: Positions that Implement the City’s SSMP ..................................................................................................8 Table 2.4: Contact Numbers for Chain of Communication .........................................................................................10 Table 2.5: Contact Numbers for Outside Resources ...................................................................................................10 Table 3.1: WDR Requirements ...................................................................................................................................12 Table 6.1: Spill Category 1: Spills to Surface Waters ..................................................................................................28 Table 6.2: Spill Category 2: Spills of 1,000 Gallons or Greater That Do Not Discharge to Surface Waters...................29 Table 6.3: Spill Category 3: Spills of Equal or Greater than 50 Gallons and Less than 1,000 Gallons That Does Not Discharge to Surface Waters .....................................................................................................................................31 Table 6.4: Spill Category 4: Spills Less Than 50 Gallons That Do Not Discharge to Surface Waters ............................32 Table 6.5: City Owned and/or Operated Lateral Spills That Do Not Discharge to Surface Waters...............................33 Table 9.1: SSMP Update Schedule ............................................................................................................................49 Table 9.2: SSMP Monitoring Parameters, by SSMP Element.....................................................................................49 Table 9.3: Preventive Operation and Maintenance Activities to Track .......................................................................54 Table 9.4: Spill Trends from 2014 to 2023 ..................................................................................................................54
FIGURES
Figure 2.1: Public Works Engineering Organizational Chart.........................................................................................6 Figure 2.2: Public Works Street Maintenance Organizational Chart ............................................................................6 Figure 2.3: Spill Response Chain of Communication ....................................................................................................9
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Acronyms and Abbreviations
BMP Best Management Practice
CCTV Closed-Circuit Television
CIP Capital Improvement Program
City City of Compton
CIWQS California Integrated Water Quality System
CWEA California Water Environment Association
FSE Food Service Establishment
GIS Geographic Information System
GPS Global Positioning System
Greenbook Standard Publication for Public Works and Standard Plans for Public Works I&I Inflow & Infiltration
LRO Legally Responsible Official
MACP Manhole Assessment Certification Program
NASSCO National Association of Sewer Service Companies
NPDES National Pollutant Discharge Elimination System
O&M Operation and Maintenance
OES Office of Emergency Services (aka Cal OES)
Order SWRCB Order No. 2022-0103-DWQ adopted December 6, 2022 and effective June 5, 2023 PACP Pipeline Assessment Certification Program
PVC Polyvinyl chloride
RWQCB Regional Water Quality Control Board
SERP Spill Emergency Response Plan
SSMP Sewer System Management Plan
SWRCB State Water Resources Control Board
VCP Vitrified Clay Pipe
WDID Waste Discharge Identification Number
WDR Waste Discharge Requirements, also referred to as the Sanitary Sewer Systems Waste Discharge Requirements (SSSWDR)
WWTP Wastewater Treatment Plant
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Definitions
Annual Report - A mandatory report in which the Enrollee provides a calendar-year update of its efforts to prevent spills.
California Integrated Water Quality System (CIWQS) - The statewide database that provides for mandatory electronic reporting as required in State and Regional Water Board-issued waste discharge requirements.
Data Submitter - An individual designated and authorized by the Enrollee’s Legally Responsible Official to enter spill data into the online CIWQS Sanitary Sewer System Database. A Data Submitter does not have the authority of a Legally Responsible Official to certify reporting entered into the online CIWQS Sanitary Sewer System Database.
Enrollee - A public, private, or other non-governmental entity that has obtained approval for regulatory coverage under the General Order, including:
A state agency, municipality, special district, or other public entity that owns and/or operates one or more sanitary sewer systems:
ogreater than one (1) mile in length (each individual sanitary sewer system); oone mile or less in length where the State Water Resources Control Board or a Regional Water Quality Control Board requires regulatory coverage under the Order, or A federal agency, private company, or other non-governmental entity that owns and/or operates a sanitary sewer system of any size where the State Water Resources Control Board or a Regional Water Quality Control Board requires regulatory coverage under the Order in response to a history of spills, proximity to surface water, or other factors supporting regulatory coverage.
Exfiltration - The underground exiting of sewage from a sanitary sewer system through cracks, offset or separated joints, or failed infrastructure due to corrosion or other factors.
Governing Entity - A governing entity includes but is not limited to the following:
A publicly elected governing board, council, or commission of a municipal agency; A Department or Division director of a federal or state agency that is not governed by a board; A governing board or commission of an organization or association; and A private system owner/manager that is not governed by a board.
Lateral (including Lower and Upper Lateral) - An underground segment of smaller diameter pipe that transports sewage from a customer’s building or property (residential, commercial, or industrial) to the Enrollee’s main sewer line in a street or easement. Upper and lower lateral boundary definitions are subject to local jurisdictional codes and ordinances, or private system ownership. A lower lateral is the portion of the lateral located between the sanitary sewer system main, and either the property line, sewer clean out, curb line, established utility easement boundary, or other jurisdictional locations. An upper lateral is the portion of the lateral from the property line, sewer clean out, curb line, established utility easement boundary, or other jurisdictional locations, to the building or property.
Legally Responsible Official - An official representative, designated by the Enrollee, with authority to sign and certify submitted information and documents required by the General Order.
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Nuisance - California Water Code Section 13050, subdivision (m), defines nuisance as anything which meets all of the following requirements:
Is injurious to health, or is indecent or offensive to the senses, or an obstruction to the free use of property, so as to interfere with the comfortable enjoyment of life or property. Affects at the same time an entire community or neighborhood, or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal. Occurs during, or as a result of, the treatment or disposal of wastes.
Potential to Discharge, Potential Discharge - Any exiting of sewage from a sanitary sewer system which can reasonably be expected to discharge into a water of the State based on the size of the sewage spill, proximity to a drainage conveyance system, and the nature of the surrounding environment.
Receiving Water - A water of the State that receives a discharge of waste.
Sanitary sewer system - A system that is designed to convey sewage, including but not limited to, pipes, manholes, pump stations, siphons, wet wells, diversion structures and/or other pertinent infrastructure, upstream of a wastewater treatment plant headworks, including:
Laterals owned and/or operated by the Enrollee;
Satellite sewer systems; and/or
Temporary conveyance and storage facilities, including but not limited to temporary piping, vaults, construction trenches, wet wells, impoundments, tanks and diversion structures.
For purpose of the Order, sanitary sewer systems include only systems owned and/or operated by the Enrollee.
Satellite Sewer System - A portion of a sanitary sewer system owned or operated by a different owner than the owner of the downstream wastewater treatment facility ultimately treating the sewage.
Sewer System Management Plan - A living document an Enrollee develops and implements to effectively manage its sanitary sewer system(s) in accordance with the General Order.
Sewage - Sewage and its associated wastewater, is untreated or partially treated domestic, municipal, commercial and/or industrial waste (including sewage sludge), and any mixture of these wastes with inflow or infiltration of stormwater or groundwater, conveyed in a sanitary sewer system.
Spill - A discharge of sewage from any portion of a sanitary sewer system due to a sanitary sewer system overflow, operational failure, and/or infrastructure failure. Exfiltration of sewage is not considered to be a spill under the General Order if the exfiltrated sewage remains in the subsurface and does not reach a surface water of the State.
Spill Reporting System – Online spill reporting system that is hosted, controlled, and maintained by the State Water Board. The web address for this site is http://ciwqs.waterboards.ca.gov. This online database is maintained on a secure site and is controlled by unique usernames and passwords.
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Training - In-house or external education and guidance needed that provides the knowledge, skills, and abilities to comply with the General Order.
Untreated or partially treated wastewater – Any volume of waste discharged from the sanitary sewer system upstream of a wastewater treatment plant headworks.
Waste - As defined in Water Code section 13050(d), includes sewage and any and all other waste substances, liquid, solid, gaseous, or radioactive, associated with human habitation, or of human or animal origin, or from any producing, manufacturing, or processing operation, including waste placed within containers of whatever nature prior to, and for purposes of, disposal.
Waste Discharge Identification Number (WDID) – Number which identifies each individual sanitary sewer system enrolled under the General Order. A WDID number is assigned to each enrolled system upon an Enrollee’s approved regulatory coverage.
Waters of the State - Surface waters or groundwater within boundaries of the state as defined in Water Code section 13050(e), in which the State and Regional Water Boards have authority to protect beneficial uses. Waters of the State include, but are not limited to, groundwater aquifers, surface waters, saline waters, natural washes and pools, wetlands, sloughs, and estuaries, regardless of flow or whether water exists during dry conditions. Waters of the State include waters of the United States.
Waters of the United States - Surface waters or waterbodies that are subject to federal jurisdiction in accordance with the Clean Water Act.
Water Quality Objective - The limit or maximum amount of pollutant, waste constituent or characteristic, or parameter level established in statewide water quality control plans and Regional Water Boards’ Basin Plans, for the reasonable protection of beneficial uses of surface waters and groundwater and the prevention of nuisance.
WDR – State Water Resources Control Board (SWRCB) Order No. 2022.0103-DWQ, known as the WASTE DISCHARGE REQUIREMENTS (WDR), which was adopted December 2, 2022 and became effective on June 5, 2023.
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Purpose and Background
In December 2022, the State of California’s Water Resources Control Board (SWRCB) adopted Order Number WQ 2022- 0103-DWQ that updated General WDRs for sanitary sewer systems designed to convey sewage greater than one (1) mile in length. The order became effective on June 5, 2023. This order supersedes the previous Order Number 2006-0003-DWQ and all amendments thereafter (i.e., Order No. WQ 2013-0058-EXEC). The WDR requires that all enrolled agencies develop a Sewer System Management Plan (SSMP) that describes the activities of the enrollee in managing, operating, and maintaining their sanitary sewer collection system. The purpose of the Order is to prevent sanitary sewer spills and to provide a plan and schedule for measures to be implemented for spill prevention including measures to effectively clean up and report spills. A copy of the reissued 2022 WDR is included in Appendix A.
The reissued WDR includes directives for owners and operators of sanitary sewer systems to demonstrate adequate and efficient management, operation, and maintenance of the sanitary sewer system. Generally, the WDR requires that:
(a.) In the event of a spill, all feasible steps are taken to control the released volume and prevent untreated wastewater from entering storm drains, creeks, etc.
(b.) If a spill occurs, it must be reported to the SWRCB using California Integrated Water Quality System (CIWQS), the online reporting system developed by the SWRCB. (c.) An SSMP with all mandatory elements be developed and approved by the governing body that owns or is responsible for the operation of the sanitary sewer system. The SSMP must include provisions to provide proper and efficient management, operation, and maintenance of the sanitary sewer system.
Spills often contain high levels of suspended solids, pathogenic organisms, toxic pollutants, nutrients, oxygen-demanding organic compounds, oil and grease and other pollutants. Spills may cause a public nuisance and/or a public health hazard particularly when raw untreated wastewater is discharged to areas with high public exposure, such as streets or surface waters used for drinking, fishing, or body contact recreation. Spills may pollute surface or ground waters, threaten public health, adversely affect aquatic life, and impair the recreational use and aesthetic enjoyment of surface waters.
Sanitary sewer systems experience periodic failures resulting in discharges that may affect waters of the state. There are many factors (including factors related to geology, design, construction methods and materials, age of the system, population growth, and system operation and maintenance), or excessive infiltration and inflow (I/I) which affect the likelihood of a spill. A proactive approach that requires agencies to ensure a system-wide operation, maintenance, and management plan is in place that will reduce the number and frequency of spills within the state. This approach will in turn decrease the risk to human health and the environment caused by spills.
Elements of a SSMP
A Sewer System Management Plan (SSMP) is a living planning document that documents ongoing local sewer system management program activities, procedures, and decision-making – at the scale necessary to address the size and complexity of the subject sanitary sewer system(s). This SSMP may incorporate other programs and other plans by reference, to address short-term and long-term system resilience through:
Proactive planning and decision-making;
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Local government ordinances;
Updated operations and maintenance activities and procedures; Implementation of capital improvements;
Sufficient local budget to support staff resources, contractors, equipment, and training; and Updated training of staff and contractors.
The Enrollee’s development, update, and implementation of a SSMP addressing the pertinent requirements is an enforceable component of the General Order. As specified in the General Order, consistent with the Water Code and the State Water Board Enforcement Policy, the State Water Board or a Regional Water Board may consider the Enrollee’s efforts in implementing an effective SSMP to prevent, contain, control, and mitigate spills when considering Water Code section 13327 factors to determine necessary enforcement of the General Order.
The eleven (11) required SSMP Elements that must be included in an SSMP are as follows:
1. Sewer System Management Plan Goal and Introduction
2. Organization
3. Legal Authority
4. Operations and Maintenance Program
5. Design and Performance Provisions
6. Spill Emergency Response Plan
7. Sewer Pipe Blockage Control Plan
8. System Evaluation, Capacity Assurance, and Capital Improvements
9. Monitoring, Measurement and Program Modifications
10. Internal Audits
11. Communication Program
ELEMENT 1: SSMP GOAL & INTRODUCTION
JANUARY 2025 1
1 SSMP Goal & Introduction
This Sewer System Management Plan (SSMP) has been prepared in compliance with the requirements of the State Water Resources Control Board’s Order Number WQ 2022-0103-DWQ. This chapter includes a summary of the regulations that serve as the impetus for the development of this SSMP, update schedule for the City of Compton’s (City) SSMP, and a brief overview of the City’s service area and sanitary sewer system.
Requirements:
D.1. SEWER SYSTEM MANAGEMENT PLAN GOAL AND INTRODUCTION: The goal of the Sewer System Management Plan (Plan) is to provide a plan and schedule to: (1) properly manage, operate, and maintain all parts of the Enrollee’s sanitary sewer system(s), (2) reduce and prevent spills, and (3) contain and mitigate spills that do occur. The Plan must include a narrative Introduction section that discusses the following items:
1.1. Regulatory Context: The Plan Introduction section must provide a general description of the local sewer system management program and discuss Plan implementation and updates.
1.2. Sewer System Management Plan Update Schedule: The Plan Introduction section must include a schedule for the Enrollee to update the Plan, including the schedule for conducting internal audits. The schedule must include milestones for incorporation of activities addressing prevention of sewer spills.
1.3. Sewer System Asset Overview: The Plan Introduction section must provide a description of the Enrollee- owned assets and service area, including but not limited to:
Location, including county(ies);
Service area boundary;
Population and community served;
System size, including total length in miles, length of gravity mainlines, length of pressurized (force) mains, and number of pump stations and siphons;
Structures diverting stormwater to the sewer system;
Data management systems;
Sewer system ownership and operation responsibilities between Enrollee and private entities for upper and lower sewer laterals;
Estimated number or percent of residential, commercial, and industrial service connections; and Unique service boundary conditions and challenge(s).
Additionally, the Plan Introduction section must provide reference to the Enrollee’s up to-date map of its sanitary sewer system, as required in section 4.1 (Updated Map of Sanitary Sewer System) of the General Order’s Attachment D.
1.1 Regulatory Context
The City has implemented this SSMP as a “living document” in accordance with the requirements of the State Water Resources Control Board’s General Order. The City most recently updated its SSMP in 2018. The City plans to obtain ELEMENT 1: SSMP GOAL & INTRODUCTION
JANUARY 2025 2
approval of this SSMP Update by the City Council in late 2024 or early 2025. The SSMP has been audited in 2024 in compliance with the State Water Resources Control Board’s regulations.
In 2016, the City entered into a Consent Judgement with the Regional Board due to failing to comply with the existing WDR and violation of the California Water Code. The Judgement indicated several requirements for the City to perform to comply with the Board’s requirements, such as CCTV inspecting the sewer system within 2 years, performing routine maintenance within 15 days of discovery, repairing pipes scored with NAASCO PACP Conditions of Grades 5 and 4, and submitting regular reports to the Board. Projects related to these items are to be added to a future capital improvement program. The following elements refer to the pertinent Consent Judgement requirements. The City has not fully complied with the Judgement this far, but moving forward should prioritize the recommended steps in the SSMP Update for full compliance. A copy of the 2016 Consent Judgement is included in Appendix B.
The WDR requires that the SSMP be updated and approved by the agency’s elected governing body every six (6) years after the date of its last Plan Update due date. In addition, the City is to conduct an internal audit every three (3) years of the SSMP in order to assess the City’s progress towards meeting the goals, objectives and requirements set forth in the SSMP. The due dates for the City’s SSMP and SSMP audits can be found here using the City’s WDID (4SSO10378): https://www.waterboards.ca.gov/water_issues/programs/sso/lookup/.
The SSMP along with all references in the document, self-audits, and the adoption documents approved by City Council will be kept on file at City offices, the City’s website and an entry will be made in the California Integrated Water Quality System (CIWQS) database when SSMP updates and audits are completed.
The City has a process in place for ensuring its SSMP will be fully implemented as written. The SSMP will be periodically reviewed by the City to ensure that SSMP elements are being followed and that the information included remains accurate and up to date. If inaccuracies are found, they will be corrected and noted as to when the corrections were made and by whom. Corrections will be tracked in a log or on an errata sheet placed in the SSMP.
The City has a goal of effectively implementing the SSMP to ensure cleaning and CCTV inspection, condition assessment, and rehabilitation is occurring regularly to ensure their sewer system is properly maintained.
1.2 Sewer System Management Plan Update Schedule
Table 1.1 presents important milestones and dates for the City to comply with the General Order in order to incorporate activities that shall prevent sewer spills.
Table 1.1: SSMP Update Schedule
Milestones Frequency Dates
Submit Annual Report Annually April 1 of each year
Update System Mapping Quarterly 1/1/2025, 4/1/2025, 7/1/2025, 10/1/2025, etc.
System Cleaning Entire system every five (5) years (or
20% a year)
1/1/2029 for entire system
CCTV Inspections Entire system every five (5) years (or 20% a year)
1/1/2029 for entire system
SSMP Focused Training Quarterly 1/1/2025, 4/1/2025, 7/1/2025, 10/1/2025, etc.
ELEMENT 1: SSMP GOAL & INTRODUCTION
JANUARY 2025 3
Milestones Frequency Dates
Update Equipment Inventory Monthly 1/1/2025, 2/1/2025, etc.
Evaluate Design Criteria and
Construction Standards and
Specifications
3 years 8/2/2027
Evaluate Spill Emergency Response
Plan
3 years 8/2/2027
Evaluate Sewer Pipe Blockage Control
Program
3 years 8/2/2027
CIP Development 5 years 6/30/2025, 6/30/2030, etc.
Review SSMP and Update Change Log Annually 8/2/2025
SSMP Audit 3 years 8/2/2027
Evaluate Communication Program 3 years 8/2/2027
SSMP Update 6 years 8/2/2031, 8/2/2037, etc.
1.3 Sewer System Asset Overview
The City of Compton (City) is located in southern Los Angeles County and is approximately 9 miles north of Long Beach, 49 miles west of Riverside, and 112 miles south of Bakersfield. The City is accessible via State Highways 110, 105, and 710 as well as State Route 91. The City’s area is approximately 10 square miles. The City’s population is approximately 96,000.
The City of Compton owns and operates the sanitary sewer collection system within its service area. The system is designed to transport sanitary sewage to trunk sewers operated by the Sanitation Districts of Los Angeles County for further transportation, treatment and eventual discharge. The City provides sewer service to most businesses and residents within the City. Table 1.2 documents the City’s sewer system assets, and Table 1.3 documents the number of service connections which connect into the City’s sewer system. General maintenance of the sanitary sewer collection system is performed by City staff within Utilities Section of the Public Works Department (D.P.W.).
Table 1.2: Sewer System Assets
City Assets Value
Total Length 147,1 miles
Length of Gravity Mainlines 147.1 miles
Length of Pressure Force Mains None
Number of Lift Stations None
Number of Siphons 1
Structures Diverting Stormwater to the Sewer System None Data Management Systems 1
Sewer System Ownership and Operation Responsibilities
between Enrollee and Private Entities for Upper and Lower Sewer Laterals
City responsibility starts at the main; Private
entities are responsible for sewer lateral up to the
connection with the sewermain.
Estimated Number or Percent of Residential, Commercial, and Industrial Service Connections
See Table 1-3
Unique Service Boundary Conditions and Challenge(s) Unincorporated county areas located within the ELEMENT 1: SSMP GOAL & INTRODUCTION
JANUARY 2025 4
City’s outer limits
Table 1.3: Number of Service Connections
Customer Class Service Connections
Single Family Residential 12,092
Multi-Family Residential 577
Commercial/Institutional 1276
Industrial 136
Landscape 18
Other 182
Total Connections 14,281
ELEMENT 2: ORGANIZATION
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2 Organization
This chapter describes the City’s organizational staffing responsible and integral for implementing the local Sewer System Management Plan.
REQUIREMENTS:
D.2. ORGANIZATION: The Plan must identify organizational staffing responsible and integral for implementing the local Sewer System Management Plan through an organization chart or similar narrative documentation that includes:
The name of the Legally Responsible Official as required in section 5.1 (Designation of a Legally Responsible Official) of the General Order;
The position titles, telephone numbers, and email addresses for management, administrative, and maintenance positions responsible for implementing specific Sewer System Management Plan elements; Organizational lines of authority; and
Chain of communication for reporting spills from receipt of complaint or other information, including the person responsible for reporting spills to the State and Regional Water Boards and other agencies, as applicable. (For example, county health officer, county environmental health agency, and State Office of Emergency Services.)
2.1 Name of Legally Responsible Official
John Strickland, Director of Public Works, is the City’s Legally Responsible Official (LRO) and has responsibility over management of the Enrollee’s entire sanitary sewer system. His contact information is (310) 605-5505 (office) and [email protected].
The City currently has one authorized representative for all wastewater system matters, the Public Works Director/City Engineer. The City is currently working on adding the Street Superintendent as a second LRO. In most circumstances, the Public Works Director will certify all electronic spill reports submitted to the SWRCB.
The Public Works Director is responsible for implementing and maintaining all elements of this SSMP.
The LRO must have authority to ensure compliance, authority over management of the entire sewer system, and authorized to make managerial decisions governing operations, capital improvements, and ensuring long-term environmental compliance. The LRO must possess recognized degree/certificate for operation and maintenance of sewer systems and/or professional training and experience demonstrated through extensive knowledge, training, and experience.
2.2 Department Organization
The organizational lines of authority for the City’s Department of Public Works Engineering and Street Maintenance Division are indicated in Figures 2.1 and 2.2.
ELEMENT 2: ORGANIZATION
JANUARY 2025 6
Figure 2.1: Public Works Engineering Organizational Chart Figure 2.2: Public Works Street Maintenance Organizational Chart
ELEMENT 2: ORGANIZATION
JANUARY 2025 7
2.3 Roles and Responsibilities
The position titles, telephone numbers, and email addresses for management, administrative, and maintenance positions responsible for implementing specific Sewer System Management Plan elements are indicated in Table 2.1.
The responsibilities for these roles are detailed in Table 2.2. The positions that implement the SSMP are detailed in Table 2.3.
Table 2.1: Key Staff Roles
Role Name Phone
Number Email Address
City Engineer Jack Gong 310-605-5505 [email protected] Project Manager John Strickland 310-605-5505 [email protected] Interim Street Superintendent Marcus Harris 310-605-5691 [email protected] Street Maintenance Supervisor Marcus Harris 310-493-2012 [email protected] Wastewater Technician Dominic
Washington
310-605-5691 [email protected]
Maintenance, Worker I Kevin Moses 310-605-5691 [email protected] Maintenance, Worker I Oscar Hurtado 310-605-5691 [email protected] Table 2.2: Department Roles & Responsibilities
Role Responsibilities
Director of Public Works/City
Engineer
Under administrative direction of the City Manager, the Director of Public Works/City Engineer plans, organizes, directs and administers the activities and operations of the Public Works Engineering Department. This role is responsible for policy development, program planning, fiscal management, administration, and operational direction of the City's Public Works Department. This includes oversight of the City's capital improvement program; planning, designing, constructing and maintaining public streets and City open spaces; utilities including sewer and storm drains; traffic engineering; maintenance of City vehicles; coordinates assigned activities with other City departments and outside agencies controlling work and activity in City rights-of-way, and maintaining public works records.
Street Superintendent Under the administrative direction of the Assistant City Manager, the Street Superintendent has direct responsibility of managing and directing all field operations for construction and maintenance of the City's infrastructure, including but not limited to, traffic controls, parks, medians, trees, golf course, and graffiti abatement. In addition, this position shall have direct responsibility for maintaining the City's sewers, construction equipment, and automotive fleet.
Street Maintenance Supervisor Works under the general supervision of the Street Superintendent.
Supervises the maintenance of City streets, including concrete and asphalt repairs, tree trimming, street sweeping and sewer and stormwater systems in compliance with Department procedures and City policies. Schedules maintenance projects, including the work of ELEMENT 2: ORGANIZATION
JANUARY 2025 8
Role Responsibilities
City crews or contractor and supervises the activities of street and/or sewer maintenance crews.
Interim Wastewater Technician Works under the general supervision of the Street Maintenance Supervisor; oversees workers at assigned work site and provides direction, training, guidance, and assistance to lower-level Maintenance Workers performing wastewater duties.
Maintenance, Worker I Under general supervision, performs a variety of journey level semi- skilled and manual labor tasks in the maintenance of sanitary sewer systems; and performs other related duties.
Worker I Under general supervision, performs a variety of journey level semi- skilled and manual labor tasks in the maintenance of sanitary sewer systems; and performs other related duties.
Table 2.3: Positions that Implement the City’s SSMP
WDR (Appendix A) Position(s)
Legally Responsible Official
(LRO) or Duly Authorized
Representative
[SSSWDR 5.1]
Public Works Director/City Engineer
1. Goal
[SSSWDR Att. D.1] Public Works Director/City Engineer
2. Organization
[SSSWDR Att. D.2] Public Works Director/City Engineer
3. Legal Authority
[SSSWDR Att. D.3]
City Council, City Manager, and Public Works Director/City Engineer
4. Operation and Maintenance
Program
[SSSWDR Att. D.4]
City Council, City Manager, and Public Works Director/City Engineer
5. Design and Performance
Provisions
[SSSWDR Att. D.5]
Street Maintenance Supervisor
6. Spill Emergency Response
Plan
[SSSWDR Att. D.6]
Public Works Director/City Engineer, and Street
Superintendent
7. Sewer Pipe Blockage Control
Program
[SSSWDR Att. D.7]
Street Maintenance Supervisor/Fire Department
8. System Evaluation, Capacity
Assurance and Capital
Improvements
[SSSWDR Att. D.8]
Street Maintenance Supervisor
9. Monitoring, Measurement, Public Works Director/City Engineer, Street ELEMENT 2: ORGANIZATION
JANUARY 2025 9
WDR (Appendix A) Position(s)
and Program Modifications
[SSSWDR Att. D.9]
Superintendent, and Street Maintenance Supervisor
10. SSMP Program Audits
[SSSWDR Att. D.10] Public Works Director/City Engineer
11. Communication Program
[SSSWDR Att. D.11] Street Superintendent
12. Funding
[SSSWDR Att. D.8.4] Public Works Director/City Engineer
2.4 Chain of Communication
The Order requires the chain of communication for reporting spills from receipt of complaint or other information, including the person responsible for reporting spills to the State and Regional Water Boards and other agencies, as applicable. Figure 2.3 contains a flowchart depicting this chain of communication. Table 2.4 lists contact phone numbers for the parties included in the chain of communication. Table 2.5 lists contact phone numbers for outside resources.
ELEMENT 2: ORGANIZATION
JANUARY 2025 10
Figure 2.3: Spill Response Chain of Communication
Table 2.4: Contact Numbers for Chain of Communication
Contact Telephone Number
Los Angeles County Sheriff Department Compton Sheriff’s Station 310-605-6500 On-Call Sewer Crew Member (National Plant Services) 562-436-7600 Street Maintenance Supervisor 310-605-5691
ELEMENT 2: ORGANIZATION
JANUARY 2025 11
City Engineer 310-605-5505
Table 2.5: Contact Numbers for Outside Resources
Organization Contact Name Telephone Number Email
EmailEnvironmental Consultant
John L Hunter and
Associates
John Hunter &
Michelle Staffield
562-623-7032 [email protected]
Sewage Spill Response Companies
Clear Blue Michael Conchig 562-431-4300
National Plant Services
Long Beach, CA
Jorge Salas 310-436-7600 [email protected] Outside Agency Notification
When sewage enters
storm drain system:
L.A. County
Department of Public
Works
Flood Maintenance
Division
Contact: Imperial Yard,
South Gate
562-861-0316
If spill is originating from
a Sanitation District
Trunk Line:
Sanitation Districts of
Los Angeles County
323-685-5217
After hours:
323-685-5217
If spill exceeds 1,000
gallons:
Los Angeles County
Health Department
323-881-4147
After hours:
323-881-4147
Adjacent City Notifications
City of Gardena 310-217-9568
After hours:
310-217-9500
City of Lynwood 310-603-0267
After hours:
562-861-9221
ELEMENT 2: ORGANIZATION
JANUARY 2025 12
Organization Contact Name Telephone Number Email
EmailCity of Carson 310-847-3520
After hours:
310-830-7600
City of Paramount 562-220-2020
After hours:
562-866-9061
Where sewage may
discharge to beach
areas, also contact:
City of Long Beach
562-570-2876
After Hours:
562-570-6383
ELEMENT 3: LEGAL AUTHORITY
JANUARY 2025 13
3 Legal Authority
This chapter describes the legal authority required to implement the SSMP plans and procedures.
Requirements:
D.3. LEGAL AUTHORITY: The Plan must include copies or an electronic link to the Enrollee’s current sewer system use ordinances, service agreements and/or other legally binding procedures to demonstrate the Enrollee possesses the necessary legal authority to:
Prevent illicit discharges into its sanitary sewer system from inflow and infiltration (I&I); unauthorized stormwater; chemical dumping; unauthorized debris; roots; fats, oils, and grease; and trash, including rags and other debris that may cause blockages;
Collaborate with storm sewer agencies to coordinate emergency spill responses, ensure access to storm sewer systems during spill events, and prevent unintentional cross connections of sanitary sewer infrastructure to storm sewer infrastructure;
Require that sewer system components and connections be properly designed and constructed; Ensure access for maintenance, inspection, and/or repairs for portions of the service lateral owned and/or operated by the Enrollee;
Enforce any violation of its sewer ordinances, service agreements, or other legally binding procedures; and
Obtain easement accessibility agreements for locations requiring sewer system operations and maintenance, as applicable.
3.1 Compliance Documents
Supporting information for Element 3 is included in Appendix C. This appendix includes the following documents:
a. Chapter 23 (Sewer and Water) of the City Municipal Code
3.1.1 Municipal Code
The legal authority required for the SSMP by the SWRCB is contained within the City’s Municipal Code. Chapter 23 (Sewer and Water) is dedicated to the sewer system. (https://ecode360.com/35619452#35619452).
3.2 Compliance Summary
Table 3.1: WDR Requirements
Legal Authority Order Requirements Applicable Sections of the City Municipal Code a. Prevent illicit discharges into its sanitary sewer
system from inflow and infiltration
(I&I); unauthorized stormwater; chemical
dumping; unauthorized debris; roots; fats,
oils, and grease; and trash, including rags and
other debris that may cause
Section 23-2.11 requires installment of sand traps
for any livery stable or garage to prevent fats, oils,
and grease.
Section 23-2.13 restricts illicit discharge of rain
water and surface water into sewer.
ELEMENT 3: LEGAL AUTHORITY
JANUARY 2025 14
Legal Authority Order Requirements Applicable Sections of the City Municipal Code blockages Section 23-2.15 restricts discharge of oil, grease, refuse, or any other clogging material including
with a chemical or mechanical tendency into the
sewer.
Section 23-3.8 applies to industrial waste
discharges into sewer
Section 23-3.4 and 23-3.5 prohibit food service
establishments from discharging FOG materials
into the sewer system.
Section 23-3.7 requires that all new food service
establishments install, operate, and maintain a
grease control device for pretreatment.
b. Collaborate with storm sewer agencies to
coordinate emergency spill responses,
ensure access to storm sewer systems during spill
events, and prevent unintentional cross
connections of sanitary sewer infrastructure to
storm sewer infrastructure
Not relevant; the City’s sewer and storm staff are
all under the same Street Maintenance Division at
the City and therefore sewer staff should be well
informed of the storm drain system.
c. Require that sewer system components and
connections be properly designed and
constructed
Section 23-1.25 prohibits unauthorized cross-
connections with potable water system.
Section 23-2.14 and 23-2.28 apply to connections
between private property and public sewer main.
23-2.2, 23-2.19 limits who can design and
construct sewer system components.
23-3.13 applies to grease interceptor requirements
for installation.
d. Ensure access for maintenance, inspection,
and/or repairs for portions of the service lateral
owned and/or operated by the Enrollee
Section 23-3.17 allows for the right to inspect any
sewer connection discharging into the City’s
sewer and allows for right of entry to do so.
e. Enforce any violation of its sewer ordinances,
service agreements, or other legally binding
procedures
Section 23-3.19 allows for enforcement of
violations to any provision stated in the ‘Sewer
and Water’ section
Section 23-3.20 allows for the penalties imposed
on the City by regulatory agencies
f. Obtain easement accessibility agreements for
locations requiring sewer system
operations and maintenance, as applicable
Not available
3.2.1 Prevention of Illicit Discharges
All measures prohibiting illicit discharges are included in Sections 23-2.13, 23-2.15, 23-3.4 and 23-3.5 of the City’s Municipal Code. The specific purpose of the chapter is to prevent the discharge of any pollutant into the sewers that would obstruct or damage the collection system, interfere with treatment, or threaten harm to human health or the environment.
ELEMENT 3: LEGAL AUTHORITY
JANUARY 2025 15
a.Stormwater and I/I - Section 23-2.13 restricts illicit discharge of rainwater and surface water, including stormwater, into a sanitary sewer. The City plans to update Ordinance to specify unauthorized stormwater inflow and infiltration as not allowed in sewer system. Industrial Waste - Section 23-2.15 restricts discharge of oil, grease, refuse, or any other clogging material including with a chemical or mechanical tendency into the sewer. Sections 23-3.8 requires any existing or new industrial or commercial facility, except food service establishments, that discharges FOG materials that have the potential to cause blockages to the sewer system, at the discretion of the Director of Public Works, to obtain an industrial waste discharge permit from the Sanitation District of Los Angeles County. Chemical Dumping –Section 23-2.15 restricts discharge of oil, grease, refuse, or any other clogging material including with a chemical or mechanical tendency into the sewer. The City plans to update the Ordinance to specify unauthorized stormwater inflow and infiltration as not allowed in sewer system. Unauthorized Debris; Roots; Fats, Oils, and Grease; and Trash - Section 23-2.15 restricts discharge of oil, grease, refuse, or any other clogging material including with a chemical or mechanical tendency into the sewer. Section 23-3.4 and 23-3.5 prohibit food service establishments from discharging FOG materials into the sewer system. The City plans to update the Ordinance to specify roots that may cause blockages are not allowed.
3.2.2 Storm Water Agency Collaboration
The City’s sewer and storm staff are all under the same Street Maintenance Division at the City and therefore sewer staff are also well informed of the storm drain system. The City controls their own Storm Water Protection Program which complies with all conditions of the State Water Resources Control Board. This enables a unified collaboration and flow of information between staff members. This department provides resources in responding to spills and access to storm sewer systems during spill events. Communication and training with staff allow both agencies to know their part in responding to spills and recognizing areas at risk, develop strategies in containing and preventing spills, and reduce risks of cross contamination. Additionally, the City’s personnel maintain knowledge of the locations of storm water collection facilities that are nearby sewer facilities.
Installation of sewer and storm water facilities are coordinated to prevent unintentional cross connections. To ensure that cross-connections between the City’s sanitary sewer and storm drain systems do not occur, the City maintains records of the alignments of both systems and when they were constructed.
No connections to either system are allowed without a permit being first obtained from the City’s Public Works Department. Each such permit issued is to contain the following information:
Line to which the connection was made
Location of connection on the line
Depth of the connection at property line
When the connection was made
All connections to either system are inspected by a City inspector to ensure that all of the above information is accurate and that the connection is made in accordance with established standards. Building Inspectors are responsible for inspecting all on-site connections, while Public Works inspectors are responsible for inspecting all connections within the public rights-of-way.
ELEMENT 3: LEGAL AUTHORITY
JANUARY 2025 16
After approval of the connection inspection, the applicable inspector permanently files the inspection card and permit in the appropriate City file for perpetual maintenance.
3.2.3 Proper Design and Construction of Sewers and Connections Regulations pertaining to the design, construction, and inspection of private sewer systems, building sewers, and connections are included in Chapter 23 of the City’s Municipal Code.
Permit Required - No person shall do any sewer or cesspool work in connection with any building or structure or disconnect any building or structure from any sanitary sewer within the City, without first obtaining from the Department of Buildings a written permit to do so as discussed in Section 23-2.5. Section 23-2.14 and 23-2.28 apply to connections between private property and public sewer main Section 23-2.2 and 23-2.19 limits who can design and construct sewer system components.
3.2.4 Lateral Maintenance Access
Property owners are responsible for maintaining the house lateral to the connecting sewer at curb, property line or to a cesspool, per section 23-2.1. Section 23-2.14 provides restrictions for lateral connections. Section 23-3.17 allows for right to inspect any sewer connection discharging into the City’s sewer and allows for right of entry to do so.
3.2.5 Enforcement Measures
Chapter 23 permits the enforcement of sewer provisions. The person in violation is subject to damages, fines and penalties, including civil liability under such other laws. Section 23-3.19 allows for enforcement of violations to any provision stated in the ‘Sewer and Water’ section Section 23-3.20 allows for the penalties imposed on the City by regulatory agencies
3.2.6 Easement Accessibility Agreements
The City has no information on obtaining easement accessibility agreements for locations requiring sewer system operations and maintenance.
The City is looking into updating the Ordinance to potentially include acquisition of easement accessibility agreements for locations requiring sewer system operations and maintenance, as applicable.
ELEMENT 4: OPERATION AND MAINTENANCE PROGRAM
JANUARY 2025 17
4 Operation and Maintenance Program
This chapter describes the City’s ability to properly manage, operate, and maintain all parts of the sanitary sewer system owned and operated by the City, and that the system operators (including employees, contractors, or other agents) are adequately trained and possess adequate knowledge, skills, and abilities.
Requirements:
D.4. OPERATION AND MAINTENANCE PROGRAM: The Plan must include the items listed below that are appropriate and applicable to the Enrollee’s system.
4.1. Updated Map of Sanitary Sewer System: An up-to-date map(s) of the sanitary sewer system, and procedures for maintaining and providing State and Regional Water Board staff access to the map(s). The map(s) must show gravity line segments and manholes, pumping facilities, pressure pipes and valves, and applicable stormwater conveyance facilities within the sewer system service area boundaries.
4.2. Preventive Operation and Maintenance Activities: A scheduling system and a data collection system for preventive operation and maintenance activities conducted by staff and contractors.
The scheduling system must include:
Inspection and maintenance activities;
Higher-frequency inspections and maintenance of known problem areas, including areas with tree root problems;
Regular visual and closed-circuit television (CCTV) inspections of manholes and sewer pipes. The data collection system must document data from system inspection and maintenance activities, including system areas/components prone to root-intrusion potentially resulting in system backup and/or failure.
4.3. Training: In-house and external training provided on a regular basis for sanitary sewer system operations and maintenance staff and contractors. The training must cover:
The requirements of the General Order;
The Enrollee’s Spill Emergency Response Plan procedures and practice drills; Skilled estimation of spill volume for field operators; and Electronic CIWQS reporting procedures for staff submitting data.
4.4. Equipment Inventory: An inventory of sewer system equipment, including the identification of critical replacement and spare parts.
4.1 Updated Map of Sanitary Sewer System
The City has not yet created a comprehensive, customized, electronic based Geographic Information System (GIS) sewer collection system map, showing all pipeline segments and manholes within the City’s jurisdictional boundary.
At the current time, maps are available indicating general pipeline, and manhole locations. These as builts are kept in a vault. The City is working with a controller to get a scanning company and create a well-organized recordkeeping system.
The City does maintain maps of the nearby storm water inlets and pipelines. To ensure that cross-connections between the City’s sanitary sewer and storm drain systems do not occur, the City maintains records of the alignments of both systems and when they were constructed.
ELEMENT 4: OPERATION AND MAINTENANCE PROGRAM
JANUARY 2025 18
The City plans to develop a GIS sewer collection system map. A hydraulic model is being developed as part of their 2024 sewer master plan. As part of this model, trunk sewers for the largest systems comprising of 6 basins are being incorporated into GIS. This will serve as the beginning of their GIS mapping, which can be developed over time. The City hopes to hire a surveyor to survey pipeline inverts to complete sewer system GIS. The City plans to add applicable stormwater conveyance facility data to the map.
The City will provide State and Regional Water Board staff access to the map(s) through submitting the sewer geodatabase to the State and Regional Water Boards as well as including the map within this SSMP Update, which will be submitted to CIWQS. A map of the sewer collection system is included in Appendix D.
Per Consent Judgement, the City must subscribe to an asset manager software program. As part of the recent Sewer Master Plan, the City has started the development of GIS for the sewer collection system. Once development of GIS for the entire system is completed, the City will be able to acquire a subscription to Maximo or another similar program.
4.2 Preventive Operation and Maintenance Activities
The City does prioritize its preventive operation and maintenance activities. This includes cyclic cleaning, regular maintenance, and investigation of customer complaints.
4.2.1 Sewer Cleaning & CCTV Inspection
Since 1987, the Public Works Department (PWD) has started a plan to clean & conduct a closed-circuit television (CCTV) survey of the citywide sewer system. The PWD maintains the records of the results of the CCTV survey.
Per Consent Judgement, the City must CCTV the entire sewer system every five (5) years (or 20% a year).
The City has contracted with National Plant Services (NPS) to CCTV and perform cleaning of the sewer collection system. While historically this effort has not been performed consistently, the City plans to improve the consistency of the cleaning and CCTV inspection operations of NPS by securing adequate funding and expanding the contract to ensure 20% of the system is covered each year
NPS is NAASSCO PACP certified, which is required per Consent Judgement. This has been confirmed on their website and on NASSCO’s certified professional directory. CCTV inspection reports with NASSCO’s PACP condition assessment rankings are generated with these CCTV inspections. No MACP condition assessment rankings are generated.
Per the Consent Judgement for pipes scored with NAASCO PACP Conditions of Grade 5, the sewer shall be repaired within 6 years of Judgement or 1 year of detection. For pipes scored with NAASCO PACP Conditions of Grade 4, the sewer shall be repaired by 2026 (within 10 years of Judgement) or 2 years of detection. If the City cannot meet these schedules for repairs, they must meet and confer with Regional Board to attempt to modify schedule. The City has not yet made these repairs based on the CCTV inspections; however, repairs are being included in the recommended Capital Improvement Program project list generated from the 2024 Sewer Master Plan.
Per Consent Judgement, the City must complete routine maintenance (including inspections, cleanings, root control, fats, oils, and grease control, and recordkeeping) within 15 days of discovery from CCTV. The CCTV cleaning NPS performs is based on scheduled sections as well as hotspot areas. As previously mentioned, cleaning has not been performed consistently and has been based on available budget. NPS does not treat the City's sewer system for ELEMENT 4: OPERATION AND MAINTENANCE PROGRAM
JANUARY 2025 19
roots; however, roots are mechanically removed if they are encountered during cleaning. It does not appear routine maintenance is performed within 15 days of discovery from CCTV. However, the City is on track to successfully clean the entire sewer system every five (5) years (or 20% a year) despite not having a regular schedule for cleaning.
Moving forward, the City has a goal to clean the entire sewer system every five (5) years (or 20% a year).
According to the Consent Judgement, the City shall submit a report on CCTV data, maintenance, and repairs to the Regional Board once complete. It does not appear the City is regularly submitting these. Quarterly reports must also be submitted to the Regional Board on projects, CCTV, repairs, and maintenance. The City is submitting these quarterly reports.
a. Review CCTV for issues such as infiltration & inflow (I/I) and aging infrastructure. b. Any problem identified in the CCTV inspection should be tracked and scheduled for repair based on the urgency of the repair.
4.2.2 Visual Inspection
The sewer crew utilizes semiannual manhole inspection of all manholes. CCTV sewer manhole inspections are not performed by NPS as part of their contract.
While conducting routine sewer maintenance activities, sewer staff are to visually inspect the worksite to identify any of the following potential problems:
Cracked/deteriorating pipes
oLine generally flowing at or near capacity
Leaking joints/seals at manholes
oChemical erosion of manhole channel, inlets or outlets oEvidence of sewage stacking in the manhole
Any potential problems noted are to be documented using a Service Request form and reported to the Street/Sewer Superintendent before the end of the workday.
The Street/Sewer Superintendent will be responsible for prioritizing and scheduling all repairs that may be practicable given budgetary constraints. Any repairs that may exceed budgetary constraints or other departmental authority shall be forwarded to the Director of Public Works for budgetary consideration. Repairs shall be prioritized in accordance with the following parameters:
Problems causing overflows or which may cause an imminent overflow are to be scheduled immediately.
These repairs may be temporary until scheduled or capital improvements may be completed. Problems that do not require immediate attention and are feasible to be performed within staff and budgetary constraints shall be scheduled as soon as practicable. Problems requiring line rehabilitation, installing bypass lines, constructing new pipelines, etc., require capital improvements, which must be forwarded through management to the City Council for funding authorization.
ELEMENT 4: OPERATION AND MAINTENANCE PROGRAM
JANUARY 2025 20
4.2.3 Odor Control
The City receives approximately 40 isolated odor complaints per year. About 50% of the odor complaints are generated by the LACSD East Alameda St Corridor. There is currently not an odor control program in place.
4.2.4 Corrosion Control
The City does not have a corrosion control program in place at this time.
4.2.5 Investigation of Customer Complaints
The City responds to customer complaints regarding the sewer system. Complaints are generally related to sewer stoppages, overflows, or odors. Response is performed by the collection system staff. Response includes assessing the complaint and resolving the problem.
4.2.6 Data Collection
CCTV and cleaning data is provided to the City by NPS. These records are maintained in a table format indicating the manhole and sewer pipeline IDs, street location, and pipe size, material, and length.
While City staff are not fully tracking CCTV inspections and maintenance activities to ensure all preventative maintenance activities are documented and performed on schedule and according to deadlines in the Consent Judgement, the City plans to improve on tracking these items moving forward. The City is to review the CCTV data for issues such as infiltration & inflow (I/I) and aging infrastructure. Any problem identified in the CCTV inspection should be tracked and scheduled for repair based on the urgency of the repair.
City staff plan to consistently document their cleaning and CCTV inspections in electronic format on City servers and are committed to continuing thorough documentation of all maintenance activities. The City intends to add this information to their GIS database once established. The City plans to improve documentation and monitoring of system deficiencies with recurrent issues based off complaints, field inspections, and CCTV inspection results.
The City plans to include a requirement in its renewed contract with NPS for NPS to maintain an internal system that tracks the City’s scheduled preventive maintenance, repairs, cleaning, and CCTV database. This should be regularly reviewed to ensure maintenance and repairs of the entire system are being performed and tracked by the NPS and according to deadlines in the Consent Judgement.
4.3 Training
The City does not yet have a formal training program for the Street Maintenance Division, nor does the City consistently perform training focused on SSMP information. National Plant Services, who the City is contracted with for CCTV inspection and cleaning, it is not required by contract to perform staffing. According to the Consent Judgement, staff must be trained through the CA water Environmental Association in collection system maintenance.
The City plans to perform annual meetings to review sections of the SSMP. The City plans to implement training on the requirements of the General Order, Spill Emergency Response Plan procedures and practice drills, skilled estimation of spill volume for field operators, and electronic CIWQS reporting procedures for staff submitting data.
ELEMENT 4: OPERATION AND MAINTENANCE PROGRAM
JANUARY 2025 21
Additionally, the City plans to ensure new sewer maintenance staff are aware of the SSMP and the importance of the training program. All trainings will be documented, and the records will be made readily accessible.
The City plans to perform drills and skilled volume estimations each year.
The City plans to update their contract with NPS so that they are required to provide documentation on SSMP training. They will be required to perform training annually related to the SSMP. This training will cover the requirements of the General Order as well as the City’s Spill Emergency Response Plan procedures and practice drills.
4.4 Equipment Inventory
The City is responsible for ensuring that their equipment is kept in proper working condition and that backup supplies are available.
Per the Consent Judgement, the City has purchased a vactor truck that is used on an emergency basis. The City was to also purchase CCTV equipment; however, they have contracted with National Plant Services to perform this work.
The City plans to create a database for spare parts and track the current inventory, e.g. for function CCTV inspection truck and vactor truck. Staff are to update this as repairs are made and parts are ordered. The equipment and spare parts are to be checked regularly to make sure that they are in working order for use in emergencies. The condition of the equipment is to be tracked in the database.
The City also plans to continue ongoing communication with vendors and local suppliers in case additional equipment and parts are needed for emergency repairs.
ELEMENT 5: DESIGN AND PERFORMANCE PROVISIONS
JANUARY 2025 22
5 Design and Performance Provisions
This chapter references the design and construction standards & specifications for new sewer systems, pump stations, and other appurtenances, and for the rehabilitation and repair of existing sewer systems. Also included are the procedures and standards for the inspection and testing of these facilities.
Requirements:
D.5. DESIGN AND PERFORMANCE PROVISIONS: The Plan must include the following items as appropriate and applicable to the Enrollee’s system:
5.1. Updated Design Criteria and Construction Standards and Specifications: Updated design criteria, and construction standards and specifications, for the construction, installation, repair, and rehabilitation of existing and proposed system infrastructure components, including but not limited to pipelines, pump stations, and other system appurtenances. If existing design criteria and construction standards are deficient to address the necessary component-specific hydraulic capacity as specified in the General Order section 8 (System Evaluation, Capacity Assurance and Capital Improvements) of the Attachment D, the procedures must include component-specific evaluation of the design criteria.
5.2. Procedures and Standards: Procedures and standards for the inspection and testing of newly constructed, newly installed, repaired, and rehabilitated system pipelines, pumps, and other equipment and appurtenances.
5.1 Updated Design Criteria and Construction Standards and Specifications
The City utilizes the current edition of the Standard Specifications for Public Works and Standard Plans for Public Works (Greenbook), the L.A. County Standard Plans, and CalTrans Standard Specifications and Standard Plans to provide design and performance provisions.
To assure that sewer facilities are properly designed and constructed, DPW requires that plans are designed by licensed engineers.
The City maintains that their sewer mains are installed, tested, and inspected according to the current Greenbook standards.
The City bids out design projects to engineering firms and whoever wins the bid at the time is who the City uses for design services. Currently, the City has a contract with NV5 for rehabilitation projects. The City staff and/or plan check consultants provide thorough review of plans prior to approval for and conducting inspection of construction work related to new and rehabbed sewer system components.
Permits for construction of any public sewer infrastructure are not issued until the iterative plan check process has been satisfactorily completed, thus, ensuring the functional design and adequate capacity of the public sewer collection system.
The City requires the preparation and submittal of “As-Built” plans of completed projects prior to final approval and acceptance of the project as public infrastructure.
ELEMENT 5: DESIGN AND PERFORMANCE PROVISIONS
JANUARY 2025 23
Per Consent Judgement, the City must implement a root control program. The City has not yet created a program for this. National Plant Services, who the City is contracted with for CCTV inspection and cleaning, does not treat the City's sewer system for roots; however, roots are mechanically removed if they are encountered during cleaning. The City plans to consider contracting with NPS to track this, add to the existing hot spot list, and determine best method to treat roots within the system. Problem areas identified in the existing CCTV inspection by NPS will be tracked and will also be added to the upcoming master plan so that it can be scheduled for repair. A treatment schedule will be developed based on the need for problem areas and root prone areas.
5.2 Procedures and Standards
The City maintains that their sewer system pipelines, pumps, and other equipment and appurtenances. are installed, tested, inspected, repaired, and rehabilitated according to the current Greenbook standards.
ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN
JANUARY 2025 24
6 Spill Emergency Response Plan
This chapter provides an overview and summary of the City’s spill response, detection, mitigation, clean up, investigation, documentation, and reporting.
Requirements:
D.6. SPILL EMERGENCY RESPONSE PLAN: The Plan must include an up-to-date Spill Emergency Response Plan to ensure prompt detection and response to spills to reduce spill volumes and collect information for prevention of future spills. The Spill Emergency Response Plan must include procedures to:
Notify primary responders, appropriate local officials, and appropriate regulatory agencies of a spill in a timely manner;
Notify other potentially affected entities (for example, health agencies, water suppliers, etc.) of spills that potentially affect public health or reach waters of the State; Comply with the notification, monitoring and reporting requirements of the General Order, State law and regulations, and applicable Regional Water Board Orders; Ensure that appropriate staff and contractors implement the Spill Emergency Response Plan and are appropriately trained;
Address emergency system operations, traffic control and other necessary response activities; Contain a spill and prevent/minimize discharge to waters of the State or any drainage conveyance system; Minimize and remediate public health impacts and adverse impacts on beneficial uses of waters of the State;
Remove sewage from the drainage conveyance system;
Clean the spill area and drainage conveyance system in a manner that does not inadvertently impact beneficial uses in the receiving waters;
Implement technologies, practices, equipment, and interagency coordination to expedite spill containment and recovery;
Implement pre-planned coordination and collaboration with storm drain agencies and other utility agencies/departments prior, during, and after a spill event; Conduct post-spill assessments of spill response activities; Document and report spill events as required in the General Order; and Annually, review and assess effectiveness of the Spill Emergency Response Plan, and update the Plan as needed.
6.1 Background
The City of Compton’s sewer system discharges to LACSD’s regional system, where it is treated. The collection system is considered to be part of the system that is subject to the order (40 C.F.R. part 122.41(e)) and is included in this response plan.
The City will annually review and assess the effectiveness of the Spill Emergency Response Plan (SERP) and update as necessary to comply with the reissued WDR. As part of these efforts, the City plans on perform regular training on SERP and develop an effective system to track and monitor spills ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN
JANUARY 2025 25
Note: During the 5-year period extending from January 1, 2014 to December 31, 2018, the City experienced twenty- five (25) spills from within its sanitary sewer collection system. During the 5-year period extending from January 1, 2019 to December 31, 2023, the City reported zero (0) spills.
The City plans on improving their spill reporting procedures to make sure that all spills are properly reported.
6.2 Known Collection System Problems
The City is currently unaware of any specific issues with the collection system, aside from the evident aging infrastructure. However, plans are in place to review CCTV data to identify any other potential problems within the system.
6.3 Causes of Sewer Backups
The following are currently known causes for sewer backups within the City’s system:
1. Fats, Oils, Grease – The City has identified grease from businesses as being one of the main reasons for sewer spills.
6.4 Preventative Maintenance
Refer to Section 4.2 for the City’s preventative maintenance program.
6.5 Spill Detection
Detection of a sanitary sewer spill may occur in numerous ways:
1. If an outside party calls in to report a spill, the City telephone operator at the City Hall/Public Works Department immediately informs the streets and utilities maintenance supervisor. a. If this occurs after hours, the caller is directed to the Police Department who will notify the sewer lead or on-call personnel.
2. If the sewer personnel discover a spill while conducting field observation rounds, then the sewer personnel immediately call the streets and utilities maintenance supervisor to relay the necessary information regarding the nature of the event.
Section 2.4 of this SSMP details the chain of communication for reporting spills and contact numbers for these points of contact, including outside resources.
Pre-planned coordination and collaboration with the City’s stormwater staff will be implemented prior, during, and after a spill event.
ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN
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6.6 Initial Spill Response
6.6.1 Containment Procedures
Containment of the spill is the top priority. The method of containment depends on the spill category. Note that for any Category 1 sewage spill in which an estimated 50,000 gallons or greater are discharged into a surface water the City must also implement its Spill Monitoring Plan, which is included in Appendix E of this SSMP Update.
The City’s crew will attempt to keep the spill in as small an area as possible. If reasonable, the crew should attempt to keep the spill in the street and out of the storm drain or other surface water bodies. The ensure the spill is contained, the crew will use the following methods:
1. Block the storm drain openings or divert flow with sand or soil. If reasonable, keep the flow contained on the street.
2. Implement traffic control measures as needed.
3. Should the overflow take place in an area not normally accessible to the public (i.e. field, etc.) the crew will use any reasonable means to pool the flow in that area for recovery.
4. Should the flow be too much to be contained in the street and is identified as a danger to the public the crew will allow the flow to enter the storm drain or catch basin. The crew will make every reasonable attempt to dam up the spill in the storm drain or catch basin and recover it from that point.
6.6.2 Sewer Bypassing
If the spill involves damage to a pipeline and a by-pass is necessary:
1. By-pass action is to be administered, as soon as conditions safely allow, by City personnel at the location where the damaged pipeline occurs.
2. Place appropriate pumps and hoses to keep sewage in the sewerline. If additional pumps and piping or hoses are required to conduct a by-pass, National Plant Services provides the additional equipment.
3. Perform repairs to the damaged sewerline as soon as conditions safely allow and as resources are available.
4. If engineering consultation is necessary, the City calls their current design engineering firm on contract, which is currently NV5.
6.7 Recovery and Clean-Up (Mitigation)
1. If the spill occurs during dry weather conditions:
a. First, secure the spill site by eliminating the overflow. b. Implement traffic control measures as needed. Should you need traffic or crowd control assistance, call police dispatch at (626) 300-0740.
ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN
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c. Coordinate and collaborate with storm drain department (prior, during, after) spills. d. Contain sewage on the ground using a manmade berm if applicable. (See Section 6.6.1 for Containment Procedures)
e. Isolate, contain, and/or divert sewage flow from any open channels and storm drain structures using sandbags, inflatable dams, or soil barriers. (See Section 1.7.1 for Containment Procedures) f. Upon determining and correcting the source and/or cause of the spill, a sample of the sewage may be taken as evidence for possible analysis, and testing. g. Any remaining standing sewage shall be vacuum pumped and transported to the wastewater treatment plant for disposal.
h. Any contaminated soil shall have free standing sewage or water vacuumed up, lime applied, allowed to dry and then removed (as necessary) by means of heavy equipment and transported to a local landfill for ultimate disposal.
i. Any contaminated structures such as streets, sidewalks, buildings, etc., shall be disinfected by pressure spraying with a 25-ppm sodium hypochlorite (liquid bleach) solution. After providing a contact time of 1 hour, the disinfected structures shall be rinsed with city water, and the wash water vacuumed and disposed of at the City wastewater plant.
i. BEFORE PRESSURE WASHING CONTAMINATED AREA, ALL CONTAMINATED
MATERIALS AND CONTAMINATED SOIL MUST BE REMOVED AND CATCH BASINS MUST BE BLOCKED. VACUUM MUST BE READY TO PICK UP WATER FROM PRESSURE WASHING. No water, sewage or containment materials are to be washed into the storm drain system.
j. Remove sewage from the drainage conveyance system. Locate an access point downstream of the entry point and block it to prevent discharge to surface waters. Use a hydro vac to clean and retrieve sewage from the drainage conveyance system. Coordinate/communicate with drainage conveyance system department for cleaning operations direction.
k. Leave the area as clean as possible picking up rags, papers, etc. Emphasis should be placed on removing all materials that are on or around the contaminated area. l. Documentation and recording of all pertinent information of the spill shall be completed prior to leaving the site.
2. If the spill occurs during wet weather conditions:
a. First, secure the spill site by eliminating the overflow. b. Implement traffic control measures as needed. Should you need traffic or crowd control assistance, call police dispatch at (626) 300-0740.
c. Coordinate and collaborate with storm drain department (prior, during, after) spills.
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d. Contain sewage on the ground using a manmade berm if applicable. (See Section 6.6.1 for Containment Procedures)
e. Isolate, contain, and/or divert sewage flow from any open channels and storm drain structures using sandbags, inflatable dams, or soil barriers. (See Section 1.7.1 for Containment Procedures) f. Upon determining and correcting the source and/or cause of the spill, a sample of the sewage may be taken as evidence for possible analysis, and testing. g. Any remaining standing sewage shall be vacuum pumped and transported to the wastewater treatment plant for disposal.
h. Any contaminated soil shall have free standing sewage or water vacuumed up, lime applied, allowed to dry and then removed (as necessary) by means of heavy equipment and transported to a local landfill for ultimate disposal.
i. Any contaminated structures such as streets, sidewalks, buildings, etc., shall be disinfected by pressure spraying with a 25-ppm sodium hypochlorite (liquid bleach) solution. After providing a contact time of 1 hour, the disinfected structures shall be rinsed with city water, and the wash water vacuumed and disposed of at the City wastewater plant.
i. BEFORE PRESSURE WASHING CONTAMINATED AREA, ALL CONTAMINATED
MATERIALS AND CONTAMINATED SOIL MUST BE REMOVED AND CATCH BASINS MUST BE BLOCKED. VACUUM MUST BE READY TO PICK UP WATER FROM PRESSURE WASHING. No water, sewage or containment materials are to be washed into the storm drain system.
j. Remove sewage from the drainage conveyance system. Locate an access point downstream of the entry point and block it to prevent discharge to surface waters. Use a hydro vac to clean and retrieve sewage from the drainage conveyance system. Coordinate/communicate with drainage conveyance system department for cleaning operations direction.
k. Leave the area as clean as possible picking up rags, papers, etc. Emphasis should be placed on removing all materials that are on or around the contaminated area. l. Documentation and recording of all pertinent information of the spill shall be completed prior to leaving the site.
6.8 Summary of Notification, Reporting, Monitoring, and Recordkeeping Requirements
The following tables provide a summary of notification, monitoring, reporting, and recordkeeping requirements, by spill category, and for City-owned laterals, for quick reference purposes only.
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6.8.1 Notification and Reporting Requirements
Table 6.1: Spill Category 1: Spills to Surface Waters
1 In the event that the CIWQS database is not available, the City will notify SWRCB by phone and will fax or e-mail all required information to the RWQCB office in accordance with the time schedules identified above. In such an event, the City will submit the appropriate reports using the CIWQS database when it becomes available. A copy of all documents shall be retained in the spill file. 2 The City always has at least one LRO. Any change in the LRO(s) including deactivation or a change to contact information, will be submitted to the SWRCB within 30 days of the change by calling (866) 792-4977 or emailing [email protected]
ELEMENT REQUIREMENT METHOD
NOTIFICATION Within two (2) hours of the City’s knowledge of a Category 1 spill of 1,000 gallons or greater, discharging or threatening to discharge to surface waters:
Notify the California Office of Emergency Services and
obtain a notification control number.
Within 24 hours:
Notify RWQCB Region 4, LA County Public Health, and
Caltrans District 7 (if applicable).
Call Cal OES at:
(800) 852-7550
Call or email RWQCB Region 4
at:
(213) 576-6600 or rb4-
[email protected]
Call LA County Public Health at:
(888) 700-9995
Call Caltrans District 7 (if
applicable)
(213) 897-3656
See Appendix F.
REPORTING Submit Draft Spill Report within three (3)
business days of the City’s knowledge of the spill;
Submit Certified Spill Report within 15 calendar
days of the spill end date;
Submit Technical Report within 45 calendar days
after the spill end date for a Category 1 spill in
which 50,000 gallons or greater discharged to
surface waters; and
Submit Amended Spill Report within 90 calendar
days after the spill end date.
Enter data into the online CIWQS
Sanitary Sewer System Database1
(http://ciwqs.waterboards.ca.gov/)
, certified by the Legally
Responsible Official2.
See Appendix F, Section F-1.
WATER
QUALITY
MONITORING
Conduct spill-specific monitoring;
Conduct water quality sampling of the receiving
water within 18 hours of initial knowledge of spill of
50,000 gallons or greater to surface waters.
Water quality records shall be
maintained and uploaded into
CIWQS as a part of Reporting
requirement above.
RECORD
KEEPING
Spill event records
Total annual spill records
Collection system telemetry records if relied upon to
document and/or estimate spill Volume
Self-maintained records shall be
available during inspections or
upon request.
See Section 6.14.1.
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Table 6.2: Spill Category 2: Spills of 1,000 Gallons or Greater That Do Not Discharge to Surface Waters
3 In the event that the CIWQS database is not available, the City will notify SWRCB by phone and will fax or e-mail all required information to the RWQCB office in accordance with the time schedules identified above. In such an event, the City will submit the appropriate reports using the CIWQS database when it becomes available. A copy of all documents shall be retained in the spill file. 4 The City always has at least one LRO. Any change in the LRO(s) including deactivation or a change to contact information, will be submitted to the SWRCB within 30 days of the change by calling (866) 792-4977 or emailing [email protected]
ELEMENT REQUIREMENT METHOD
NOTIFICATION Within two (2) hours of the City’s knowledge of a Category 2 spill of 1,000 gallons or greater, discharging or threatening to discharge to waters of the State:
Notify California Office of Emergency Services and
obtain a notification control number.
Within 24 hours:
Notify RWQCB Region 4, LA County Public Health, and
Caltrans District 7 (if applicable).
Call or email RWQCB Region 4
at:
(213) 576-6600 or rb4-
[email protected]
Call LA County Public Health
at:
(888) 700-9995
Call Caltrans District 7 (if
applicable)
(213) 897-3656
See
https://www.comptoncity.org/ .
REPORTING Submit Draft Spill Report within three (3) business days of the City’s knowledge of the spill;
Submit Certified Spill Report within 15 calendar days
of the spill end date; and
Submit Amended Spill Report within 90 calendar
days after the spill end date.
Enter data into the online CIWQS
Sanitary Sewer System
Database3
(http://ciwqs.waterboards.ca.gov/
), certified by the Legally
Responsible Official(s)4.
See Appendix G, Section G-2.
WATER
QUALITY
MONITORING
Conduct spill-specific monitoring; Water quality records shall be maintained and uploaded into
CIWQS as a part of Reporting
requirement above.
RECORD
KEEPING
Spill event records
Total annual spill records
Collection system telemetry records if relied upon to
document and/or estimate spill Volume
Self-maintained records shall be
available during inspections or
upon request.
See Section 6.14.1.
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Table 6.3: Spill Category 3: Spills of Equal or Greater than 50 Gallons and Less than 1,000 Gallons That Does Not Discharge to Surface Waters
5 In the event that the CIWQS database is not available, the City will notify SWRCB by phone and will fax or e-mail all required information to the RWQCB office in accordance with the time schedules identified above. In such an event, the City will submit the appropriate reports using the CIWQS database when it becomes available. A copy of all documents shall be retained in the spill file. 6 The City always has at least one LRO. Any change in the LRO(s) including deactivation or a change to contact information, will be submitted to the SWRCB within 30 days of the change by calling (866) 792-4977 or emailing [email protected]
ELEMENT REQUIREMENT METHOD
NOTIFICATION Not Applicable Not Applicable
REPORTING Submit monthly Certified Spill Report to the online CIWQS Sanitary Sewer System Database within 30
calendars days after the end of the month in which
the spills occur; and
Submit Amended Spill Reports within 90 calendar
days after the Certified Spill Report due date.
Enter data into the online
CIWQS Sanitary Sewer System
Database5
(http://ciwqs.waterboards.ca.gov
/), certified by the Legally
Responsible Official(s)6.
See Appendix G, Sections G-3
and G-5.
WATER
QUALITY
MONITORING
Conduct spill-specific monitoring; Water quality records shall be maintained and uploaded into
CIWQS as a part of Reporting
requirement above.
RECORD
KEEPING
Spill event records
Total annual spill records
Collection system telemetry records if relied upon to
document and/or estimate spill Volume
Self-maintained records shall be
available during inspections or
upon request.
See Section 6.14.1.
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Table 6.4: Spill Category 4: Spills Less Than 50 Gallons That Do Not Discharge to Surface Waters 7 In the event that the CIWQS database is not available, the City will notify SWRCB by phone and will fax or e-mail all required information to the RWQCB office in accordance with the time schedules identified above. In such an event, the City will submit the appropriate reports using the CIWQS database when it becomes available. A copy of all documents shall be retained in the spill file. 8 The City always has at least one LRO. Any change in the LRO(s) including deactivation or a change to contact information, will be submitted to the SWRCB within 30 days of the change by calling (866) 792-4977 or emailing [email protected]
ELEMENT REQUIREMENT METHOD
NOTIFICATION Not Applicable Not Applicable
REPORTING If, during any calendar month, Category 4 spills occur, certify monthly, the estimated total spill volume
exiting the sanitary sewer system, and the total
number of all Category 4 spills into the online CIWQS
Sanitary Sewer System Database, within 30 days after
the end of the calendar month in which the spills
occurred.
Upload and certify a report, in an acceptable digital
format, of all Category 4 spills to the online CIWQS
Sanitary Sewer System Database, by February 1st
after the end of the calendar year in which the spills
occur.
Enter data into the online
CIWQS Sanitary Sewer System
Database7
(http://ciwqs.waterboards.ca.gov
/), certified by the Legally
Responsible Official(s)8.
See Appendix G, Sections G-4,
G-6, and G-7.
WATER
QUALITY
MONITORING
Conduct spill-specific monitoring; Water quality records shall be maintained and uploaded into
CIWQS as a part of Reporting
requirement above.
RECORD
KEEPING
Individual spill event records
Total annual spill records
Collection system telemetry records if relied upon to
document and/or estimate spill Volume
Self-maintained records shall be
available during inspections or
upon request.
See Section 6.14.2.
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Table 6.5: City Owned and/or Operated Lateral Spills That Do Not Discharge to Surface Waters 9 In the event that the CIWQS database is not available, the City will notify SWRCB by phone and will fax or e-mail all required information to the RWQCB office in accordance with the time schedules identified above. In such an event, the City will submit the appropriate reports using the CIWQS database when it becomes available. A copy of all documents shall be retained in the spill file. 10 The City always has at least one LRO. Any change in the LRO(s) including deactivation or a change to contact information, will be submitted to the SWRCB within 30 days of the change by calling (866) 792-4977 or emailing [email protected]
ELEMENT REQUIREMENT METHOD
NOTIFICATION Within two (2) hours of the City’s knowledge of a spill of 1,000 gallons or greater, from a City- owned and/or
operated lateral, discharging or threatening to discharge to waters of the State:
Notify California Office of Emergency Services and
obtain a notification control number.
Within 24 hours:
Notify RWQCB Region 4, LA County Public Health, and
Caltrans District 7 (if applicable).
Not applicable to a spill of less than 1,000 gallons.
Call Cal OES at:
(800) 852-7550
Call or email RWQCB Region 4
at:
(213) 576-6600 or rb4-
[email protected]
Call LA County Public Health
at:
(888) 700-9995
Call Caltrans District 7 (if
applicable)
(213) 897-3656
See Appendix F.
REPORTING Upload and certify a report, in an acceptable digital format, of all lateral spills (that do not discharge to a surface water) to the online CIWQS Sanitary Sewer
System Database, by February 1st after the end of the
calendar year in which the spills occur.
Report a lateral spill of any volume that discharges to a surface water as a Category 1 spill.
Enter data into the online CIWQS
Sanitary Sewer System
Database9
(http://ciwqs.waterboards.ca.gov/
), certified by the Legally
Responsible Official(s)10.
See Appendix G, Sections G-6
and G-7.
WATER
QUALITY
MONITORING
Conduct visual monitoring. Water quality records shall be maintained and uploaded into
CIWQS as a part of Reporting
requirement above.
RECORD
KEEPING
Individual spill event records
Total annual spill records
Collection system telemetry records if relied upon to
document and/or estimate spill Volume
Self-maintained records shall be
available during inspections or
upon request.
See Section 6.14.2.
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6.9 Notification
Appendix F of this SSMP details the notification requirements for reporting spills.
6.10 Reporting
Appendix G of this SSMP details the reporting requirements for spills.
6.11 Monitoring
The City’s Spill Monitoring Plan is included in Appendix E of this SSMP Update. This Spill Monitoring Plan will be implemented immediately upon discovery of any Category 1 sewage spill in which an estimated 50,000 gallons or greater are discharged into a surface water.
6.12 Spill-Specific Monitoring Requirements
6.12.1 Spill Location and Spread
The City shall visually assess the spill location(s) and spread using photography, global positioning system (GPS), and other best available tools. The City shall document the critical spill locations, including:
Photography and GPS coordinates for:
oThe system location where spill originated.
For multiple appearance points of a single spill event, the points closest to the spill origin. Photography for:
oDrainage conveyance system entry locations,
oThe location(s) of discharge into surface waters, as applicable, oExtent of spill spread, and
oThe location(s) of clean up.
6.12.2 Spill Volume Estimation
To assess the approximate spill magnitude and spread, the City shall estimate the total spill volume using updated volume estimation techniques, calculations, and documentation for electronic reporting. The City is currently in the process of identifying a specific spill volume estimation technique, which will be included in the Change Log when identified. The City shall update its notification and reporting of estimated spill volume (which includes spill volume recovered) as further information is gathered during and after a spill event.
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6.13 Public Access and Warning
1. Place notification placards at the site for the public to stay out of the area.
2. Mark affected area with caution tape, traffic cones, or other applicable means.
3. Limit public access to affected areas.
6.14 Investigation and Documentation
For each spill, the City is to:
1. Determine the cause of the spill
2. Investigate to determine the cause of the spill.
3. Document findings of the investigation on the spill Incident Report Form.
4. Determine what, if any, necessary repairs are needed.
5. Budget and schedule repairs, if required.
6. Coordinate and collaborate with storm drain agencies after spills.
6.14.1 Recordkeeping Requirements
The City shall maintain records to document compliance with the provisions of the General Order, and previous General Order 2006-0003-DWQ as applicable, for each sanitary sewer system owned, including any required records generated by a City’s contractor(s).
6.14.1.1 Recordkeeping Time Period
The City shall maintain records of this Spill Emergency Response Plan for five (5) years.
6.14.1.2 Availability of Documents
The City shall make the records readily available, either electronic or hard copies, for review by Water Board staff during onsite inspections or through an information request.
6.14.1.3 Spill Reports
The City shall maintain records for each of the following spill-related events and activities:
Spill event complaint, including but not limited to records documenting how the City responded to notifications of spills. Each complaint record must, at a minimum, include the following information:
a. Date, time, and method of notification,
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b. Date and time the complainant first noticed the spill, if available, c. Narrative description of the complaint, including any information the caller provided regarding whether the spill has reached surface waters or a drainage conveyance system, if available, d. Complainant’s contact information, if available, and e. Final resolution of the complaint;
Records documenting the steps and/or remedial action(s) undertaken by the City, using all available information
Records documenting how estimate(s) of volume(s) and, if applicable, volume(s) of spill recovered were calculated;
All California Office of Emergency Services notification records, as applicable; and Records, in accordance with the Monitoring Requirements in to be developed as indicated in Section 6.11.
6.14.2 Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills
The City must maintain the following records for each individual Category 4 spill and for each individual non- Category 1 City-owned and/or operated lateral spill, and report in accordance with Appendix G section G-6 (Annual Certified Spill Reporting of Category 4 and/or Lateral Spills).
6.14.2.1 Recordkeeping of Individual Category 4 Spill Information:
1. Contact information: Name and telephone number of City contact person to respond to spill-specific questions;
2. Spill location name;
3. Description and GPS coordinates for the system location where the spill originated;
4. Did the spill reach a drainage conveyance system? If Yes:
a. Description of drainage conveyance system location,
b. Estimated spill volume fully recovered within the drainage conveyance system, and c. Estimated spill volume remaining within the drainage conveyance system;
5. Estimated total spill volume exiting the sanitary sewer system;
6. Spill date and start time;
7. Spill cause(s) (for example, root intrusion, grease deposition, etc.); ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN
JANUARY 2025 38
8. System failure location (for example, main, pump station, etc.);
9. Description of spill response activities including description of immediate spill containment and cleanup efforts;
10. Description of how the volume estimation was calculated, including, at minimum:
a. The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
b. The methodology and type of data relied upon to estimate the spill start time, on-going spill rate at time of arrival (if applicable), and the spill end time;
11. Description of implemented system modifications and operating/maintenance modifications.
6.14.2.2 Recordkeeping of Individual Lateral Spill Information:
1. Date and time the City was notified of, or self-discovered, the spill;
2. Location of individual spill;
3. Estimated individual spill volume;
4. Spill cause(s) (for example, root intrusion, grease deposition, etc.); and
5. Description of how the volume estimations were calculated.
6.14.2.3 Total Annual Spill Information:
1. Estimated total annual spill volume;
2. Description of spill corrective actions, including at minimum:
a. Local regulatory enforcement action taken against the sewer lateral owner in response to a spill, as applicable, and
b. System operation, maintenance and program modifications implemented to prevent repeated spill occurrences at the same spill location.
6.14.3 Sewer System Telemetry Records
The City shall maintain the following sewer system telemetry records if used to document compliance with the General Order, and previous General Order 2006-0003-DWQ as applicable, including spill volume estimates:
Supervisory control and data acquisition (SCADA) system(s); ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN
JANUARY 2025 39
Alarm system(s);
Flow monitoring device(s) or other instrument(s) used to estimate sewage flow rates, and/or volumes; Computerized maintenance management system records; and Asset management-related records.
6.14.4 Sewer System Management Plan Implementation Records The City shall maintain records documenting the City’s implementation of its Sewer System Management Plan, including documents supporting its Sewer System Management Plan audits, corrections, modifications, and updates to the Sewer System Management Plan.
6.14.5 Audit Records
The City shall maintain, at minimum, the following records pertaining to its Sewer System Management Plan audits, which includes this Spill Emergency Response Plan, and other internal audits:
Completed audit documents and findings;
Name and contact information of staff and/or consultants that conducted or involved in the audit; and Follow-up actions based on audit findings.
6.14.6 Equipment Records
The City shall maintain a log of all owned and leased sewer system cleaning, operational, maintenance, construction, and rehabilitation equipment.
6.14.7 Work Orders
The City shall maintain record of work orders for operations and maintenance projects.
6.15 Post Spill Assessment
After a spill, the City is to assess their spill response. The City is to analyze:
The cause of the spill;
Average and maximum response time;
Percent of total overflow volume contained or returned to sewer; Compliance with notification, monitoring, and reporting requirements; Public Notification; and
ELEMENT 6: SPILL EMERGENCY RESPONSE PLAN
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What repairs were performed.
This assessment is to be used to update the Spill Emergency Response Plan as necessary and to conduct additional training where needed.
6.16 Annual Review
The City is to annually review and assess the effectiveness of the Spill Emergency Response Plan. Updates to the Spill Emergency Response Plan should be made as necessary based on this review.
6.17 Annual Report
Section G-8 of Appendix G of this SSMP details the reporting requirements for the City’s Annual Report.
The City shall update their previous year’s Annual Report, by April 1 of each year after the Effective Date of the General Order, for each calendar year (January 1 through December 31).
6.18 Spill Response Equipment
Currently, the City relies on National Plant Services to perform spill response with their own equipment. The City has a vactor truck of their own.
6.19 Training
Training is conducted through the City of Compton’s Street Maintenance Division. Staff and contractors are trained on the Spill Emergency Response Plan procedures and practice drills. The City is committed to training sewer staff at least once annually and any contractors utilized for cleaning, CCTV inspection and/or emergency response are to be trained twice per year. The City implements training with staff from sewer and storm to know their part in responding to spills and recognizing areas at risk, develop strategies in containing and preventing spills, and reduce risks of cross contamination.
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7 Sewer Pipe Blockage Control Program
This chapter discusses the City’s sewer pipe blockage control measures, including identification of problem areas, focused cleaning, and source control.
Requirements:
D.7. SEWER PIPE BLOCKAGE CONTROL PROGRAM: The Sewer System Management Plan must include procedures for the evaluation of the Enrollee’s service area to determine whether a sewer pipe blockage control program is needed to control fats, oils, grease, rags and debris. If the Enrollee determines that a program is not needed, the Enrollee shall provide justification in its Plan for why a program is not needed. The procedures must include, at minimum:
An implementation plan and schedule for a public education and outreach program that promotes proper disposal of pipe-blocking substances;
A plan and schedule for the disposal of pipe-blocking substances generated within the sanitary sewer system service area. This may include a list of acceptable disposal facilities and/or additional facilities needed to adequately dispose of substances generated within a sanitary sewer system service area; The legal authority to prohibit discharges to the system and identify measures to prevent spills and blockages;
Requirements to install grease removal devices (such as traps or interceptors), design standards for the removal devices, maintenance requirements, best management practices requirements, recordkeeping and reporting requirements;
Authority to inspect grease producing facilities, enforcement authorities, and whether the Enrollee has sufficient staff to inspect and enforce the fats, oils, and grease ordinance; An identification of sanitary sewer system sections subject to fats, oils, and grease blockages and establishment of a cleaning schedule for each section; and Implementation of source control measures for all sources of fats, oils, and grease reaching the sanitary sewer system for each section identified above.
The City implements a Sewer Pipe Blockage Control Program. This program prevents the discharge of fats, oils, grease, and debris into the sanitary sewer and storm drain systems, subsequently improving public health and safety and reducing sewer maintenance costs.
The City has disposal methods for fats, oils, grease, and debris accumulated within the collection system during cleaning operations. These substances are taken to the maintenance yard dump bins and eventually taken to the County Sanitation Districts of Los Angeles County (LACSD) facilities.
The City monitors private property spills and ensures proper containment and cleanup. If the spill reaches the public right-of-way, it becomes the City’s responsibility to contain the spill.
Installation of sewer and storm water facilities are coordinated to prevent unintentional cross connections. To ensure that cross-connections between the City’s sanitary sewer and storm drain systems do not occur, the City plans to maintain detailed records of the alignments of both systems and when they were constructed.
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No connections to either system are allowed without a permit being first obtained from the City’s Public Works Department. Each such permit issued is to contain the following information:
Line to which the connection was made
Location of connection on the line
Depth of the connection at property line
When the connection was made
All connections to either system are inspected by a City inspector to ensure that all of the above information is accurate and that the connection is made in accordance with established standards. Building Inspectors are responsible for inspecting all on-site connections, while Public Works inspectors are responsible for inspecting all connections within the public rights-of-way.
After approval of the connection inspection, the applicable inspector permanently files the inspection card and permit in the appropriate City file for perpetual maintenance.
All restaurants are required to install grease interceptors. They are required to be designed per the Uniform Plumbing Code; approved, installed, and operated in a manner to control discharges of fats, oils, grease, into the sanitary sewer system; and to ensure public health and safety. The City expects to create maintenance requirements, best management practices requirements, recordkeeping and reporting requirements, and design standards for the installation of grease interceptors for wastewater discharge permit holders.
If there is a FOG-related problem associated with an industrial waste permit, the DPW will take enforcement action against the permitee, or where applicable, refer the problem to the contract city for enforcement action.
The City using the Fire Department to perform annual FOG inspections at food service establishments (FSEs). The Fire Department has one (1) dedicated staff for inspecting and enforcing the fats, oils, and grease ordinance who performs FSE inspections monthly. The City Fire Department’s compliance manager works closely with sewer staff.
If the sewer staff notices any problems with the system arising from fats, oils, grease, rags, and debris, the compliance manager is notified to determine the source and coordinate with the discharger to create mitigation strategies. The results of these FOG Control Program inspections are included in the City’s quarterly reports to the Water Board.
The City plans to improve tracking of sanitary sewer system sections subject to fats, oils, and grease blockages and ensure a regular cleaning schedule for each section.
The City provides information to the general public on proper disposal of fats, oils, grease, and rags. The City plans to formally provide information regularly to restaurants on proper FOG disposal.
The City conducts routine sewer maintenance, visually inspecting worksites for cracked/deteriorating pipes or leaking joints/seals at manholes. The sewer crew utilizes semiannual manhole inspection of all manholes and the scheduled and unscheduled sewer line cleaning and CCTV inspection of the interior of sewer pipes to identify pipe segments experiencing heavy grease accumulation and in mitigating the problem.
Per the Consent Judgement, the City must implement a root control program. The City has not created a program for this. National Plant Services, who the City is contracted with for CCTV inspection and cleaning, does not treat the City's sewer system for roots; however, roots are mechanically removed if they are encountered during cleaning. The ELEMENT 7: SEWER PIPE BLOCKAGE CONTROL PROGRAM
JANUARY 2025 43
City plans to consider contracting with NPS to track roots in the sewer system, add to the existing hot spot list, and determine the best method to treat roots within the system.
Per the Consent Judgement, the City must complete routine maintenance (including inspections, cleanings, root control, fats, oils, and grease control, and recordkeeping) within 15 days of discovery from CCTV. The CCTV cleaning that NPS, for the City’s contractor for CCTV inspection and cleaning, performs is based on scheduled sections as well as hotspot areas. Cleaning has historically not been performed consistently and is based on available budget. While the City has not been consistent in performing routine maintenance or hot spot inspection within 15 days of discovery from CCTV, the City plans to create a formal schedule for routine maintenance and to complete inspections of hot spots every 90 days, within 15 days of discovery. The City also plans to consider specifically identifying measures to prevent spills and blockages, particularly in hotspot areas.
Per the Consent Judgement, the City is submitting quarterly reports to the Regional Board on their Sewer Pipe Blockage Control Program and root control program according to dates in Judgement Section 8.
The City incorporates different methods to communicate to the public the importance of reducing blockages in the sewer system. The City publishes information about proper disposal of fats, oils, and grease; spill prevention measures; installation of backflow valves; house lateral maintenance through their Annual Report, letters, brochures, newsletters newspapers, and individual notices to property owners. The City has a free program available to residential customer to safely dispose of used oil, with information available on their website for requesting a free pickup.
The City plans to adjust the list of items in their resources that should not be disposed down the drain to include wipes, rags, paper towels, and plastics. The City will evaluate additional outreach opportunities such as utility bill inserts, a website section with updates, and social media. The City is considering holding public awareness events and presentations. The City plans to create a schedule for public education and outreach to ensure this is occurring regularly.
The City utilizes personal contacts with home and business owners by field crews and inspectors. The City distributes door hangers in neighborhoods with sewer lines prone to heavy grease problems. These methods have proven to be very effective in relaying information on proper disposal of proper disposal of fats, oils, and grease and spill prevention measures to stakeholders. DPW is continuously seeking additional ways to communicate with the public.
The City plans to utilize their home webpage, use of radio and television announcements, and other means for public information in the future. The City is considering communicating to the public that unauthorized stormwater inflow and infiltration are not allowed in sewer or storm drain system.
Section 2 in Chapter 23 (Sewer and Water) of the City Municipal Code provides the legal authority to prohibit discharges to the system and identify measures to prevent spills and blockages. Section 3 also provides the legal authority for site inspections and enforcement of violations of industrial wastewater discharge regulations.
ELEMENT 8: SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS JANUARY 2025 44
8 System Evaluation, Capacity Assurance, and
Capital Improvements
This chapter discusses the City’s capacity management measures, including the most recent Master Plan and recommended capacity improvement projects.
Requirements:
D.8. SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS: The Plan must include procedures and activities for:
Routine evaluation and assessment of system conditions; Capacity assessment and design criteria;
Prioritization of corrective actions; and
A capital improvement plan.
8.1 System Evaluation and Condition Assessment: The Plan must include procedures to:
Evaluate the sanitary sewer system assets utilizing the best practices and technologies available; Identify and justify the amount (percentage) of its system for its condition to be assessed each year; Prioritize the condition assessment of system areas that:
oHold a high level of environmental consequences if vulnerable to collapse, failure, blockage, capacity issues, or other system deficiencies;
oAre located in or within the vicinity of surface waters, steep terrain, high groundwater elevations, and environmentally sensitive areas;
oAre within the vicinity of a receiving water with a bacterial-related impairment on the most current Clean Water Act section 303(d) List;
Assess the system conditions using visual observations, video surveillance and/or other comparable system inspection methods;
Utilize observations/evidence of system conditions that may contribute to exiting of sewage from the system which can reasonably be expected to discharge into a water of the State; Maintain documents and recordkeeping of system evaluation and condition assessment inspections and activities; and
Identify system assets vulnerable to direct and indirect impacts of climate change, including but not limited to: sea level rise; flooding and/or erosion due to increased storm volumes, frequency, and/or intensity; wildfires; and increased power disruptions.
8.2. Capacity Assessment and Design Criteria: The Plan must include procedures to identify system components that are experiencing or contributing to spills caused by hydraulic deficiency and/or limited capacity, including procedures to identify the appropriate hydraulic capacity of key system elements for:
Dry-weather peak flow conditions that cause or contributes to spill events; The appropriate design storm(s) or wet weather events that causes or contributes to spill events; The capacity of key system components; and
Identify the major sources that contribute to the peak flows associated with sewer spills.
The capacity assessment must consider:
Data from existing system condition assessments, system inspections, system audits, spill history, and other available information;
ELEMENT 8: SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS JANUARY 2025 45
Capacity of flood-prone systems subject to increased infiltration and inflow, under normal local and regional storm conditions;
Capacity of systems subject to increased infiltration and inflow due to larger and/or higher-intensity storm events as a result of climate change;
Increases of erosive forces in canyons and streams near underground and aboveground system components due to larger and/or higher-intensity storm events; Capacity of major system elements to accommodate dry weather peak flow conditions, and updated design storm and wet weather events; and
Necessary redundancy in pumping and storage capacities.
8.3. Prioritization of Corrective Action: The findings of the condition assessments and capacity assessments must be used to prioritize corrective actions. Prioritization must consider the severity of the consequences of potential spills.
8.4. Capital Improvement Plan: The capital improvement plan must include the following items:
Project schedules including completion dates for all portions of the capital improvement program; Internal and external project funding sources for each project; and Joint coordination between operation and maintenance staff, and engineering staff/consultants during planning, design, and construction of capital improvement projects; and Interagency coordination with other impacted utility agencies.
8.1 System Evaluation and Condition Assessment
The City’s last sewer system master plan was performed in 2008. The master plan included a model of the collection system. This model consisted of existing system condition assessment, compilation of the existing system data, creation of a computerized modeling, and recommendations for a 10-year capital improvements program to improve the existing sewer system to operate effectively and to accommodate future growth. The model identified that 5% of piping was deficient and needed upgrading.
In 2016, the City entered into a Consent Judgement with the Regional Board due to failing to comply with the SSSWDR and violation of the California Water Code. The Judgement indicated several requirements for the City to perform to comply with the Board’s requirements, such as CCTV inspecting the sewer system within 2 years, performing routine maintenance within 15 days of discovery, repairing pipes scored with NAASCO PACP Conditions of Grades 5 and 4, and submitting regular reports to the Board. Projects related to these items are to be added to a future capital improvement program.
Currently, the City has contracted with National Plant Services (NPS) to CCTV and perform cleaning of the sewer collection system. However, this effort has not been performed consistently. Cleaning and CCTV inspection has been performed based on available budget rather than on a regular schedule. If a problem is identified in the CCTV inspection, this is to be tracked so that it can be scheduled for repair. The City plans to utilize CCTV evaluation to assess their sewer system, identify deficiencies in their system, and identify potential repair and replacement projects (note, this is currently being done as part of the 2024 Sewer Master Plan Update). The City should ensure they are obtaining CCTV inspection reports regular inspection by NPS for the City for annual condition assessment review to identify projects for future CIPs. The City plans to establish a regular CCTV inspection and cleaning program with a goal to CCTV inspect and clean the entire system every five (5) years (or 20% a year).
The City has contracted with Dudek to develop a 2024 sewer system master plan update, and this is currently in development. This master plan will utilize CCTV evaluation to assess the City’s sewer system, identify deficiencies in ELEMENT 8: SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS JANUARY 2025 46
their system, and identify potential repair and replacement projects. All project requirements and timelines from the Consent Judgement will be taken into consideration and included.
The master plan will also include condition assessment and determining pipe segments to be replaced or rehabilitated. Problem areas identified in the existing CCTV inspection by NPS will also be added to the upcoming master plan so that it can be scheduled for repair. Pipe segments scored with NAASCO PACP Conditions of Grades 5 and 4 which the City have not already repaired will be included. As indicated in the Consent Judgement, pipes scored with NAASCO PACP Conditions of Grade 5, the sewer shall be repaired by 2022 (within 6 years of Judgement) or 1 year of detection. For pipes scored with NAASCO PACP Conditions of Grade 4, the sewer shall be repaired by 2026 (within 10 years of Judgement) or 2 years of detection. If the City cannot meet these schedules for repairs, they must meet and confer with Regional Board to attempt to modify schedule.
The upcoming master plan will identify, evaluate, and prioritize, to the best of its ability given available data, the condition assessment of system areas that: hold a high level of environmental consequences if vulnerable to collapse, failure, blockage, capacity issues, or other system deficiencies; are located in or within the vicinity of existing or new surface waters, steep terrain, high groundwater elevations, and environmentally sensitive areas; are within the vicinity of a receiving water with a bacterial-related impairment on the most current Clean Water Act section 303(d) List. The master plan will also prioritize corrective actions considering the severity and consequences of potential spills.
The City is to establish and maintain an internal system to track the City’s scheduled preventive maintenance, repair, cleaning, and CCTV database beginning in 2025. This should be regularly reviewed to ensure maintenance and repairs of the entire system are being performed and tracked by the City and according to deadlines in the Consent Judgement. The City should formally track all requirements in the Consent Judgement to ensure compliance with the Regional Board’s ruling.
The City is currently not aware of the existing issues that their system is experiencing, other than aging infrastructure. As more data comes in, the City is committed tracking any other issues in the system, such as manhole corrosion or infiltration & inflow (I/I) and plans to address these issues in a subsequent master plan to determine possible solutions. Additionally, the City will evaluate parts of the sewer system that are more likely to impact public health, waters of the State, and any drainage conveyance system in the event of a system failure.
City staff plans to improve consistency of documenting their cleaning and CCTV inspections in electronic format and perform thorough documentation of all maintenance activities. The City intends to add this information to their GIS database once established. The City plans to document and monitor system deficiencies with recurrent issues based off complaints, field inspections, and CCTV inspection results so these can be added to a future sewer master plan.
The City plans to evaluate system components that are vulnerable to climate change. The City is aware that heavy rains and earthquakes may impact their system. The City will look at storm volumes, frequency, and intensity as a part of this future analysis. The City plans to determine solutions to protect their sewer system from these elements.
The City plans to track implementation of capital improvements. The City identifies that recordkeeping enhancements are needed and plans to electronically track recordkeeping. The City plans to improve internal coordination with operations, maintenance, engineering, and stormwater. The City also plans develop system- specific procedures to proactively prioritize O/M, condition assessments, and repair/rehabilitation.
The City requires for new developments that propose to connect to the City system to provide a sewer area or capacity study prior to connection to the County sewer trunk. This is to ensure these developments do not exceed the City’s design criteria listed in the 2024 master plan. Sewer plans for construction must be prepared by registered ELEMENT 8: SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS JANUARY 2025 47
civil engineers and submitted to the DPW for plan check. This will reduce the occurrence of spills or system failures in the future due to capacity issues.
8.2 Capacity Assessment and Design Criteria
The City’s last sewer system master plan performed in 2008 identified that only 5% of piping was deficient in capacity, including the additional loads due to the forecasted growth, and needed upgrading. However, the 2008 master plan did not perform sewer flow metering and rather used water demand data to load the sewer model, assuming a 100% return rate to the sewer system, which is overly conservative. Therefore, the results of the hydraulic model are not deemed accurate. The 2008 hydraulic model was not made available for the 2024 sewer master plan.
The 2024 sewer system master plan included manhole surveys and development of phase 1 of a hydraulic model that evaluated a portion of the sewer system’s ability to convey existing and future peak flows. Flow monitoring was performed in five locations in 2023 and used to calibrate the hydraulic model. The model was used to identify areas with limited capacity and the need for system improvements and rehabilitation based on capacity issues. The 2024 master plan effort also included updating the City’s current SSMP to comply with the 2022 WDR. Per Consent Judgement, a flow and capacity study must be done by 2028 (within 12 years of Judgement). This portion of the master plan will satisfy this requirement.
The master plan identified capacity-related improvement projects for the collection system. Dry-weather peak flow conditions that cause or contributes to potential spill events were identified.
Future master plans will augment the City’s sewer hydraulic model and further evaluate the City’s sewer system to identify any possible capacity limitations and/or potential spill locations due to hydraulic deficiencies.
8.3 Prioritization of Corrective Action
The City contracted with Dudek to develop their 2024 sewer system master plan, which is currently in development.
This master plan utilized CCTV inspection data to assess condition of the City’s sewer system, identify condition deficiencies in their system, and identify potential repair and replacement projects. All project requirements and timelines from the Consent Judgement will be taken into consideration and included. All prior CIP and master plan projects indicated in Exhibit B of the Consent Judgement and their due dates will be incorporated as part of this recommended CIP.
Problem areas identified in the existing CCTV inspection by NPS were added to the upcoming master plan so that repairs can be scheduled. Pipe segments scored with NAASCO PACP Conditions of Grades 5 and 4 which the City have not already repaired were included. As indicated in the Consent Judgement, pipes scored with NAASCO PACP Conditions of Grade 5, the sewer shall be repaired by 2022 (within 6 years of Judgement) or 1 year of detection. For pipes scored with NAASCO PACP Conditions of Grade 4, the sewer shall be repaired by 2026 (within 10 years of Judgement) or 2 years of detection. If the City cannot meet these schedules for repairs, they must meet and confer with Regional Board to attempt to modify schedule.
In the 2024 sewer system master plan, projects will be prioritized into different categories based on their need for repair and replacement. This priority list will be utilized to determine a schedule for completing these projects.
ELEMENT 8: SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS JANUARY 2025 48
Per the Consent Judgement, the City is to submit a report on all completed CIP and master plan projects to the Regional Board once complete; submit a report on CCTV data, maintenance, and repairs to the Regional Board once complete; and continue to submit quarterly reports to the Regional Board on projects, CCTV, repairs, and maintenance according to dates in Judgement Section 8. The City will continue to track these items as well as other requirements in the Consent Judgement to ensure compliance with the Regional Board’s ruling.
8.4 Capital Improvement Plan
For capital improvements, the City has currently been performing rehabilitation and replacement projects as issues arise. There has not been a consistent and regular plan of CCTV inspections and cleanings that are translated into rehabilitation and replacement.
The City completed two projects from their 2008 sewer master plan. These include the Wilmington/Alondra Area Sewer Restoration, approximately 13,000 LF of pipe, and Compton/Wilmington Area Sewer Replacement, approximately 10,000 LF of pipe. The City is to submit a report on these completed projects to the Board per the Consent Judgement. Per Consent Judgement, the City is to complete all CIP and master plan projects by specific due dates. Some of these due dates have already passed. The City is to submit a report on all completed projects to the Board. The City is also to submit quarterly reports to the Board on projects, CCTV, repairs, and maintenance according to dates in Judgement Section 8.
A capital improvement plan will be developed as part of the 2024 sewer system master plan, which will comply with the Consent Judgement. Once potential projects are identified, these will be prioritized into different categories based on their need for repair and replacement. This priority list will be utilized to determine a schedule for completing these projects. Funding sources will also be identified in the master plan. All projects and due dates from the Consent Judgement will be included. Any coordination necessary between operation and maintenance staff, and engineering staff/consultants during planning, design, and construction of capital improvement projects will be outlined.
ELEMENT 9: MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS JANUARY 2025 49
9 Monitoring, Measurement and Program
Modifications
This section of the SSMP discusses parameters the City tracks to monitor the success of the SSMP and how the City plans to keep the SSMP current.
Requirements:
D.9. MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS: The Plan must include an Adaptive Management section that addresses Plan-implementation effectiveness and the steps for necessary Plan improvement, including:
Maintaining relevant information, including audit findings, to establish and prioritize appropriate Plan activities;
Monitoring the implementation and measuring the effectiveness of each Plan Element; Assessing the success of the preventive operation and maintenance activities; Updating Plan procedures and activities, as appropriate, based on results of monitoring and performance evaluations; and
Identifying and illustrating spill trends, including spill frequency, locations and estimated volumes.
In the past, the City has not formally tracked the success of SSMP elements, nor did they have a regular schedule to evaluate whether SSMP elements are current. As issues arose and elements changed, the City tracked certain segments of each element of the SSMP such as organizational changes, system mapping, and standard details and specifications for construction. Currently, the City plans to be proactive about spill prevention and understand how tracking their SSMP elements will improve efficacy of this goal.
The City should formally track all requirements in the Consent Judgement to ensure compliance with the Regional Board’s ruling.
The City intends to regularly track whether the SSMP elements are being performed and their effectiveness. The City will develop a database, or similar tool, to maintain specific information related to the SSMP, as a central repository for changes to the SSMP and regularly track the success of SSMP elements, including the preventative maintenance activities noted above. The City will evaluate whether SSMP elements have changed so that changes can be documented in a Change Log to include the specific change, the date of the change and the name of the person making the change. The Change Log is included in Appendix H. Procedures and activities will be updated based on these tracking and assessment methods described. The City plans to update plan procedures and activities based on monitoring and performance evaluations. Table 9.1 details a schedule for evaluating the Monitoring, Measurement, and Program Modifications.
ELEMENT 9: MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS JANUARY 2025 50
Table 9.1: SSMP Update Schedule
Milestones Frequency DATES
Evaluate whether SSMP elements have
changed
Annually 8/1/2025 and annually
thereafter
Track the Success of SSMP Elements Annually 8/1/2025 and annually thereafter
Assess the Preventative Operation and
Maintenance Activities
Annually 8/1/2025 and annually
thereafter
The City has a renewed interest to improved tracking and updating their procedures and activities as needed. SSMP Audit findings will also be tracked and used to determine any necessary SSMP modifications. Table 9.2 describes the monitoring parameters for tracking the effectiveness of each Plan Element, which the City will also review during the SSMP Audit, in addition to the schedule depicted in Table 9.1.
Table 9.2: SSMP Monitoring Parameters, by SSMP Element
SSMP Element Summary of Element Purpose Parameters for Tracking Effectiveness (Annual)
SSMP Goal and
Introduction
Provide a plan and schedule to: (1)
properly manage, operate, and maintain
all parts of the City’s sanitary sewer
system(s), (2) reduce and prevent spills,
and (3) contain and mitigate spills that do
occur.
City is following SSMP Update Schedule
Periodically review section
Organization Document LRO(s), organization of City
staff, contact information, and chain of
communication for spill response.
Periodically review section
Legal Authority Ensure the City has sufficient legal
authority required to implement the
SSMP plans and procedures.
Periodically review section
Operations and
Maintenance Program
Minimize blockages and spills; properly
manage, operate, and maintain all parts
of the sanitary sewer system; ensure
system operators (including employees,
contractors, or other agents) are
adequately trained
Percentage of gravity sewer lines cleaned
Percentage of sewer lines inspected by
televising
Number of pipe failures
Regular training related to SSMP
requirements
Equipment inventory tracked
Periodically review section
ELEMENT 9: MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS JANUARY 2025 51
SSMP Element Summary of Element Purpose Parameters for Tracking Effectiveness (Annual)
Design and Performance
Provisions
Maintain updated design and
construction standards & specifications
for new sewer systems, pump stations,
and other appurtenances, and for the
rehabilitation and repair of existing sewer
systems.
Periodically review section
Spill Emergency Response
Plan
Provide timely and effective response,
detection, mitigation, clean up,
investigation, and documentation to spill
emergencies; and comply with
regulatory reporting requirements
Average and maximum response time
Percent of total spill volume contained or
returned to sewer
Compliance with notification, monitoring,
and reporting requirements
Staff and contractors are implementing the
Spill Emergency Response Plan
Perform regular training on the Spill
Emergency Response Plan.
Contain any spills and prevent/minimize
discharge to waters of the State or any
drainage conveyance system
Minimize and remediate public health
impacts and adverse impacts on beneficial
uses of waters of the State
Clean the spill area and drainage conveyance
system in a manner that does not
inadvertently impact beneficial uses in the
receiving waters
Spill events are documented and reported as
required in the General Order
Spill responses and assessed
Conduct annual review of Spill Emergency
Response Plan
Periodically review section
ELEMENT 9: MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS JANUARY 2025 52
SSMP Element Summary of Element Purpose Parameters for Tracking Effectiveness (Annual)
Sewer Pipe Blockage
Control Plan
Incorporating sewer pipe blockage
control measures, including identification
of problem areas, focused cleaning, and
source control.
Number of blockages due to FOG, rags,
debris, etc.
Number of overflows due to FOG, rags,
debris, etc.
Number of FOG producing facilities
inspected
Number of enforcement measures at FOG
producing facilities
An identification of sanitary sewer system
sections subject to fats, oils, and grease
blockages and establishment of a cleaning
schedule
Implementation of source control
measures
Plan and schedule for a public education
and outreach program
Periodically review section
ELEMENT 9: MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS JANUARY 2025 53
SSMP Element Summary of Element Purpose Parameters for Tracking Effectiveness (Annual)
System Evaluation,
Capacity Assurance, and
Capital Improvements
Evaluate procedures and activities for: (1)
routine evaluation and assessment of
system conditions; (2) capacity
assessment and design criteria; (3)
prioritization of corrective actions; and
(4) a capital improvement plan.
Number of spills due to capacity limitations
or wet weather
Date of completion of most recent sewer
master plan, including flow metering and/or
hydraulic modeling
3-year backlog for capacity improvement
projects
Utilize CCTV inspection and assessment and
tracking system deficiencies
Prioritize projects based on their need for
repair and replacement
Evaluate system deficiencies with recurrent
issues and how these can be turned into
rehabilitation or replacement projects.
Creation of a schedule to complete these
projects
Document system evaluation and condition
assessment inspections and activities
Determine solutions to address infiltration &
inflow (I/I), aging infrastructure, corrosion due
to sulfuric acid, and sags in the system due to
unstable soil
Determine solutions to protect from heavy
rains, earthquakes, and other impacts of
climate change
Determine funding sources
Periodically review section
ELEMENT 9: MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS JANUARY 2025 54
SSMP Element Summary of Element Purpose Parameters for Tracking Effectiveness (Annual)
Monitoring, Measurement
and Program
Modifications
Evaluate effectiveness of SSMP,
keep SSMP up-to-date, and identify
necessary changes
Document SSMP information
Follow schedule for reviewing SSMP
information
Determine effectiveness of each Plan
Element
Assess the success of preventive operation
and maintenance activities;
Update Plan procedures and activities based
on evaluation
Identify and illustrate spill trends
Periodically review section
Internal Audits Formally identify SSMP effectiveness,
limitations, and necessary changes
Date of completion of last annual audit
Audits are occurring during original audit
cycle
Audit is uploaded to CIWQS within 6 months
of due date
Deficiencies found during the audit are
addressed and corrected
Periodically review section
Communication Program Communicate with the public and
satellite agencies.
SSMP is uploaded/updated on City’s website
& CIWQS
Plan and schedule for a public education and
outreach program
Notification program to the public for sewer
system management and information on
spills and discharges
Periodically review section
The City will use the specific monitoring parameters listed in Table 9.2 and documented on the tracking sheet included in Appendix I to assist in completion of the annual SSMP Audit described in Plan Element 10. The City will also continue to collect data for all performance measures currently tracked. This additional information that the City collects, such as customer complaints and length of pipe cleaned, will be used to support or further evaluate the success and limitations of the SSMP as needed.
ELEMENT 9: MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS JANUARY 2025 55
The City plans to improve tracking of scheduled preventative maintenance, repairs, and cleaning activities and to improve on the consistency of this tracking, including beginning to track system deficiencies with recurrent issues so that this information can be evaluated is determine how this impacts the success of the SSMP. The City tracks the components listed in Table 9.3 to quantitatively determine the effectiveness of preventive operation and maintenance activities. Using this data and comparing it to spill data shown in Table 9.4, the current preventative operation and maintenance activities will be used to assess the City’s program in reducing spills. Once the City establishes a regular CCTV inspection and cleaning program, they are confident this will ensure spills are further minimized by reaching their goal to CCTV inspect and clean the entire system every five (5) years (or 20% a year), as well as performing regular and timely rehabilitation and replacement projects to rectify condition- and capacity-deficient pipelines and infrastructure.
Table 9.3: Preventive Operation and Maintenance Activities to Track
DESCRIPTION OF WORK EVENT
Total length of gravity sewer lines cleaned
Percentage of gravity sewer lines cleaned
Total number of manhole inspections
Total length of sewer lines inspected by televising
Percentage of sewer lines inspected by televising
Table 9.4 shows the spill trends for the City. If spills do occur in the future, the City will include data related to spill frequency, locations, and estimated volumes.
Table 9.4: Spill Trends from 2014 to 2023
No. of Spills
Year Category 1 Category 2 Category 3 Category 4 1
Total
Spills
2014 6 0 2 N/A 8
2015 2 0 4 N/A 6
2016 4 0 2 N/A 6
2017 1 0 1 N/A 2
2018 2 1 0 N/A 3
2019 1 0 3 N/A 4
2020 0 0 0 N/A 0
2021 0 0 0 N/A 0
2022 1 0 0 0 1
2023 0 0 0 0 0
Note:
1 Category 4 spills were introduced as part of the reissued 2022 WDR.
ELEMENT 10: INTERNAL AUDITS
JANUARY 2025 56
10 Internal Audits
This chapter discusses the City’s SSMP auditing program.
Requirements:
D.10. INTERNAL AUDITS: The Plan shall include internal audit procedures, appropriate to the size and performance of the system, for the Enrollee to comply with section 5.4 (Sewer System Management Plan Audits) of the General Order.
The reissued State Water Resources Control Board’s Order Number WQ 2022-0103-DWQ requires that an agency conduct an internal audit of its SSMP at least once every three (3) years and include a summary of revisions based on Audit findings. The audit is to evaluate how the City has developed and implemented each of the eleven elements of the SSMP and how each element is functioning to assist in the prevention of sanitary sewer spills. The audit report shall be kept on file at the City offices, certified by the LRO, and uploaded to the online California Integrated Water Quality System (CIWQS) database within 6 months after the end of the 3-year audit period. Any deficiencies found during the audit are addressed and corrected.
The due dates for the City’s SSMP and SSMP audits can be found here using the City’s WDID (4SSO10378):
https://www.waterboards.ca.gov/water_issues/programs/sso/lookup/.
In 2023, the City contracted with Dudek to work closely with the City’s staff to review the SSMP, its implementation, and the effectiveness of the City’s efforts in reducing spills. Before this, the City had not consistently performed audits of its SSMP.
The City plans to complete audit requirements and due dates corresponding to the original audit cycle. The City’s next SSMP audit is to be completed within 6 months of 8/2/2027. During this next audit, the City will review the progress of SSMP elements and their success, areas of improvement in implementing the SSMP and preventing spills, evaluate whether they are tracking monitoring, measurement, and program modifications under Element 9, provide a description of system improvements from the previous year, and provide a description and schedule of system improvements for the upcoming year. Audit findings and recommendations will be incorporated into future SSMP Updates.
Future Audits must: be sized/scaled to system, evaluate implementation and effectiveness of SSMP in preventing spills, identify necessary modifications to SSMP for correcting deficiencies, and include a proposed schedule for correcting deficiencies.
A log of the latest audit recommendations is included in Appendix J of this SSMP Update.
ELEMENT 11: COMMUNICATION PROGRAM
JANUARY 2025 57
11 Communication Program
This section of the SSMP discusses the City’s communications with the public.
Requirements:
D.11. COMMUNICATION PROGRAM: The Plan must include the following items as appropriate and applicable to the Enrollee’s system:
The Plan must include procedures for the Enrollee to communicate with:
The public for:
oSpills and discharges resulting in closures of public areas, or that enter a source of drinking water, and
oThe development, implementation, and update of its Plan, including opportunities for public input to Plan implementation and updates.
Owners/operators of systems that connect into the Enrollee’s system, including satellite systems, for:
oSystem operation, maintenance, and capital improvement-related activities.
The City maintains a website ( https://www.comptoncity.org) to inform the public about City activities. The City’s website is an effective communication channel for providing alerts and news to the public. The main page of the website provides important announcements, agendas and minutes for City Council meetings, Community meetings, and other key information for City residents.
Once approved, the City will maintain its SSMP on the City website ( https://www.comptoncity.org). The link to the document on the City’s website will include a link for including opportunities for public input on plan implementation and updates. The City currently allows public comment on the SSMP at City council meetings. The SSMP will be certified by the City Council during a public City council meeting.
The City incorporates different methods to communicate to the public the importance of reducing blockages in the sewer system. The City publishes information about proper disposal of fats, oils, and grease and the installation of backflow vales, house lateral maintenance, etc. through their Annual Report, letters, brochures, newsletters, newspapers, and individual notices to property owners. The City has a free program available to residential customer to safely dispose of used oil, with information available on their website for requesting a free pickup.
The City provides information to restaurants and food service establishments (FSEs) regarding proper fats, oils, and grease disposal and education to not dispose of these items down the drain on their website. The City plans to adjust the list of items in their resources that should not be disposed down the drain to include wipes, rags, paper towels, and plastics. The City will evaluate additional outreach opportunities such as utility bill inserts, a website section with updates, and social media. The City is considering holding public awareness events and presentations. The City plans to create a schedule for public education and outreach to ensure this is occurring regularly. The City plans to develop communications procedures with the public and operators connected to the sewer system.
ELEMENT 11: COMMUNICATION PROGRAM
JANUARY 2025 58
The City dedicates a section of their website for their Project Pollution Prevention (https://www.comptoncity.org/departments/public-works/documents-and-reports). This includes a sewage spill reference brochure, proper disposal of household hazardous waste, along with other informational brochures on handling of different kinds of discharge.
The City will use a section of the website to notify the public of important upcoming activities related to sewer system management in addition to information on spills and discharges requiring closures of public areas or that enter a source of drinking water. The City plans to develop a formal procedure for communicating to the public regarding information on the SSMP.
ELEMENT 12: SUPPORTING DOCUMENTATION
JANUARY 2025 59
12 Supporting Documentation
APPENDIX A: THE REISSUED WDR
Appendix A
The Reissued WDR: Order Number WQ 2022-0103-DWQ
APPENDIX B: 2016 CONSENT JUDGEMENT
Appendix B
2016 Consent Judgement
APPENDIX C: CHAPTER 23 OF THE CITY MUNICIPAL CODE
Appendix C
Chapter 23 (Sewer and Water) of the City Municipal Code APPENDIX D: UPDATED SEWER COLLECTION SYSTEM MAP
Appendix D
Sewer Collection System Map
APPENDIX E: SANITARY SEWER SPILL PLAN
Appendix E
Sanitary Spill Monitoring Plan
APPENDIX E: SANITARY SEWER SPILL PLAN
JANUARY 2025 E-1
APPENDIX F: NOTIFICATION REQUIREMENTS
Appendix F
Notification Requirements
APPENDIX F: NOTIFICATION REQUIREMENTS
JANUARY 2025 F-1
NOTIFICATION REQUIREMENTS
F-1 Notification of Spills of 1,000 Galloons or Greater to the California Office of Emergency Services
Per Water Code section 13271, for a spill that discharges in or on any waters of the State, or discharges or is deposited where it is, or probably will be, discharged in or on any waters of the State, the City shall notify the California Office of Emergency Services and obtain a California Office of Emergency Services Control Number as soon as possible but no later than two (2) hours after:
The City has knowledge of the spill; and
Notification can be provided without substantially impeding cleanup or other emergency measures.
The notification requirements in this section apply to individual spills of 1,000 gallons or greater, from a City-owned and/or operated laterals, to a water of the State.
The control number must be referred to in all communication, oral and written.
F-2 Spill Notification Information
The City shall provide the following spill information to the California Office of Emergency Services before receiving a Control Number, as applicable:
Name and phone number of the person notifying the California Office of Emergency Services; Estimated spill volume (gallons);
Estimated spill rate from the system (gallons per minute); Estimated discharge rate (gallons per minute) directly into waters of the State or indirectly into a drainage conveyance system;
Spill incident description:
oBrief narrative of the spill event, and
oSpill incident location (address, city, and zip code) and closest cross streets and/or landmarks; Name and phone number of contact person on-scene;
Date and time the City was informed of the spill event; Name of sanitary sewer system causing the spill;
Spill cause or suspected cause (if known);
Amount of spill contained;
APPENDIX F: NOTIFICATION REQUIREMENTS
JANUARY 2025 F-2
Name of receiving water body receiving or potentially receiving discharge; and Description of water body impact and/ or potential impact to beneficial uses.
F-3 Notification of Spill Report Updates
Following the initial notification to the California Office of Emergency Services and until such time that the City certifies the spill report in the online CIWQS Sanitary Sewer System Database, the City shall provide updates to the California Office of Emergency Services regarding substantial changes to:
Estimated spill volume (increase or decrease in gallons initially estimated); Estimated discharge volume discharged directly into waters of the State or indirectly into a drainage conveyance system (increase or decrease in gallons initially estimated); and Additional impact(s) to the receiving water(s) and beneficial uses.
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-2
Appendix G
Reporting Requirements
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-1
REPORTING REQUIREMENTS
All reporting required in the General Order must be submitted electronically to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov), unless specified otherwise in the General Order. Electronic reporting may solely be conducted by a Legally Responsible Official or Data Submitter(s) previously designated by the Legally Responsible Official, as required in section 5.8 (Designation of Data Submitters) of the General Order.
The City shall report any information that is protected by the Homeland Security Act, by email to [email protected], with a brief explanation of the protection provided by the Homeland Security Act for the subject report to be protected from unauthorized disclosure and/or public access, and for official Water Board regulatory purposes only.
G-1 Reporting Requirements for Individual Category 1 Spill Reporting
G-1-1 Draft Spill Report for Category 1 Spills
Within three (3) business days of the City’s knowledge of a Category 1 spill, the City shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.
The Draft Spill Report must, at minimum, include the following items:
1. Contact information: Name and telephone number of City contact person to respond to spill-specific questions;
2. Spill location name;
3. Date and time the City was notified of, or self-discovered, the spill;
4. Operator arrival time;
5. Estimated spill start date and time;
6. Date and time the City notified the California Office of Emergency Services, and the assigned control number;
7. Description, photographs, and GPS coordinates of the system location where the spill originated; a. If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;
8. Estimated total spill volume exiting the system;
9. Description and photographs of the extent of the spill and spill boundaries;
10. Did the spill reach a drainage conveyance system? If Yes:
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-2
a. Description of the drainage conveyance system transporting the spill; b. Photographs of the drainage conveyance system entry location(s); c. Estimated spill volume fully recovered from the drainage conveyance system; d. Estimated spill volume remaining within the drainage conveyance system;
11. Description and photographs of all discharge point(s) into the surface water;
12. Estimated spill volume that discharged to surface waters; and
13. Estimated total spill volume recovered.
G-1-2 Certified Spill Report for Category 1 Spills
Within 15 calendar days of the spill end date, the City shall submit a Certified Spill Report for Category 1 spills, to the online CIWQS Sanitary Sewer System Database.
Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.
The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.1.1 (Draft Spill Report for Category 1 Spills) above:
1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;
2. Spill end date and time;
3. Description of how the spill volume estimations were calculated, including at a minimum:
a. The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
b. The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;
4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
5. System failure location (for example, main, lateral, pump station, etc.);
6. Description of the pipe material, and estimated age of the pipe material, at the failure location;
7. Description of the impact of the spill;
8. Whether or not the spill was associated with a storm event;
9. Description of spill response activities including description of immediate spill containment and cleanup APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-3
efforts;
10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;
11. Spill response completion date;
12. Detailed narrative of investigation and investigation findings of cause of spill;
13. Reasons for an ongoing investigation (as applicable) and the expected date of completion;
14. Name and type of receiving water body(s);
15. Description of the water body(s), including but not limited to:
a. Observed impacts on aquatic life,
b. Public closure, restricted public access, temporary restricted use, and/or posted health warnings due to spill,
c. Responsible entity for closing/restricting use of water body, and d. Number of days closed/restricted as a result of the spill.
16. Whether or not the spill was located within 1,000 feet of a municipal surface water intake; and
17. If water quality samples were collected, identify sample locations and the parameters the water quality samples were analyzed for. If no samples were taken, Not Applicable shall be selected.
G-1-3 Spill Technical Report for Individual Category 1 Spill in which 50,000 Gallons or Greater Discharged into a Surface Water
For any spill in which 50,000 gallons or greater discharged into a surface water, within 45 calendar days of the spill end date, the City shall submit a Spill Technical Report to the online CIWQS Sanitary Sewer System Database. The Spill Technical Report, at minimum, must include the following information:
1. Spill causes and circumstances, including at minimum:
a. Complete and detailed explanation of how and when the spill was discovered; b. Photographs illustrating the spill origin, the extent and reach of the spill, drainage conveyance system entrance and exit, receiving water, and post-cleanup site conditions; c. Diagram showing the spill failure point, appearance point(s), the spill flow path, and ultimate destinations;
d. Detailed description of the methodology employed, and available data used to calculate the discharge volume and, if applicable, the recovered spill volume; e. Detailed description of the spill cause(s);
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-4
f. Description of the pipe material, and estimated age of the pipe material, at the failure location; g. Description of the impact of the spill;
h. Copy of original field crew records used to document the spill; and i. Historical maintenance records for the failure location.
2. City’s response to the spill:
a. Chronological narrative description of all actions taken by the City to terminate the spill; b. Explanation of how the Sewer System Management Plan Spill Emergency Response Plan was implemented to respond to and mitigate the spill; and
c. Final corrective action(s) completed and a schedule for planned corrective actions, including:
i. Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable,
ii. Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences, and
iii. Necessary modifications to the Emergency Spill Response Plan to incorporate lessons learned in responding to and mitigating the spill.
3. Water Quality Monitoring, including at minimum:
a. Description of all water quality sampling activities conducted; b. List of pollutant and parameters monitored, sampled and analyzed; as required in Appendix H; c. Laboratory results, including laboratory reports;
d. Detailed location map illustrating all water quality sampling points; and e. Other regulatory agencies receiving sample results (if applicable).
4. Evaluation of spill impact(s), including a description of short-term and long-term impact(s) to beneficial uses of the surface water.
G-1-4 Amended Certified Spill Reports for Individual Category 1 Spills The City shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The City shall certify the amended report.
After 90 calendar days, the City shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-5
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-6
G-2 Reporting Requirements for Individual Category 2 Spill Reporting G-2-1 Draft Spill Report for Category 2 Spills
Within three (3) business days of the City’s knowledge of a Category 2 spill, the City shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.
The Draft Spill Report must, at minimum, include the following items:
1. Contact information: Name and telephone number of City contact person to respond to spill-specific questions;
2. Spill location name;
3. Date and time the City was notified of, or self-discovered, the spill;
4. Operator arrival time;
5. Estimated spill start date and time;
6. Date and time the City notified the California Office of Emergency Services, and the assigned control number;
7. Description, photographs, and GPS coordinates of the system location where the spill originated; If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;
8. Estimated total spill volume exiting the system;
9. Description and photographs of the extent of the spill and spill boundaries;
10. Did the spill reach a drainage conveyance system? If Yes:
a. Description of the drainage conveyance system transporting the spill; b. Photographs of the drainage conveyance system entry location(s); c. Estimated spill volume fully recovered from the drainage conveyance system; d. Estimated spill volume remaining within the drainage conveyance system; e. Estimated spill volume discharged to a groundwater infiltration basin or facility, if applicable; and
11. Estimated total spill volume recovered.
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-7
G-2-2 Certified Spill Report for Category 2 Spills
Within 15 calendar days of the spill end date, the City shall submit a Certified Spill Report for the Category 2 spill, to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov). Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.
The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.2.1 (Draft Spill Report for Category 2 Spills) above:
1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;
2. Spill end date and time;
3. Description of how the spill volume estimations were calculated, including at a minimum:
a. The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
b. The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;
4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
5. System failure location (for example, main, pump station, etc.);
6. Description of the pipe/infrastructure material, and estimated age of the pipe material, at the failure location;
7. Description of the impact of the spill;
8. Whether or not the spill was associated with a storm event;
9. Description of spill response activities including description of immediate spill containment and cleanup efforts;
10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;
11. Spill response completion date;
12. Detailed narrative of investigation and investigation findings of cause of spill;
13. Reasons for an ongoing investigation (as applicable) and the expected date of completion; and
14. Whether or not the spill was located within 1,000 feet of a municipal surface water intake.
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-8
G-2-3 Amended Certified Spill Reports for Individual Category 2 Spills The City shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The City shall certify the amended report.
After 90 calendar days, the City shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.
G-3 Monthly Certified Spill Reporting for Category 3 Spills The City shall report and certify all Category 3 spills to the online CIWQS Sanitary Sewer System Database within 30 calendar days after the end of the month in which the spills occurred. (For example, all Category 3 spills occurring in the month of February shall be reported and certified by March 30th). After the Legally Responsible Official certifies the spills, the online CIWQS Sanitary Sewer System Database will issue a spill event identification number for each spill.
The monthly reporting of all Category 3 spills must include the following items for each spill:
1. Contact information: Name and telephone number of City contact person to respond to spill-specific questions;
2. Spill location name;
3. Date and time the City was notified of, or self-discovered, the spill;
4. Operator arrival time;
5. Estimated spill start date and time;
6. Description, photographs, and GPS coordinates where the spill originated:
a. If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;
7. Estimated total spill volume exiting the system;
8. Description and photographs of the extent of the spill and spill boundaries;
9. Did the spill reach a drainage conveyance system? If Yes:
a. Description of the drainage conveyance system transporting the spill; b. Photographs of the drainage conveyance system entry locations(s); c. Estimated spill volume fully recovered from the drainage conveyance system; and d. Estimated spill volume discharged to a groundwater infiltration basis or facility, if applicable.
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-9
10. Estimated total spill volume recovered;
11. Description of the spill event destination(s), including GPS coordinates, if available, that represent the full spread and reaches of the spill;
12. Spill end date and time;
13. Description of how the spill volume estimations were calculated, including, at minimum:
a. The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
b. The methodology and type of data relied upon to estimate the spill start time, on-going spill rate at time of arrival (if applicable), and the spill end time;
14. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
15. System failure location (for example, main, pump station, etc.);
16. Description of the pipe/infrastructure material, and estimated age of the pipe/infrastructure material, at the failure location;
17. Description of the impact of the spill;
18. Whether or not the spill was associated with a storm event;
19. Description of spill response activities including description of immediate spill containment and cleanup efforts;
20. Description of spill corrective actions, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of the major milestones for those steps; including, at minimum:
a. Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable, and
b. Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences at the same spill event location, including:
i. Adjusted schedule/method of preventive maintenance,
ii. Planned rehabilitation or replacement of sanitary sewer asset, iii. Inspected, repaired asset(s), or replaced defective asset(s), iv. Capital improvements,
v. Documentation verifying immediately implemented system modifications and operating/maintenance modifications,
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-10
vi. Description of spill response activities,
vii. Spill response completion date, and
viii. Ongoing investigation efforts, and expected completion date of investigation to determine the full cause of spill;
21. Detailed narrative of investigation and investigation findings of cause of spill.
G-4 Monthly Certified Spill Reporting for Category 4 Spills The City shall report and certify the estimated total spill volume exiting the sanitary sewer system, and the total number of all Category 4 spills to the online CIWQS Sanitary Sewer System Database, within 30 calendar days after the end of the month in which the spills occurred.
G-5 Amended Certified Spill Reports for Category 3 Spills Within 90 calendar days of the certified Spill Report due date, the City may update or add additional information to a certified Spill Report by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The City shall certify the amended report.
After 90 calendar days, the Legally Responsible Official shall contact the State Water Board at [email protected] to request to amend a certified Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the 90-day timeframe for amending the certified Spill Report, as provided above.
G-6 Annual Certified Spill Reporting of Category 4 and/or Lateral Spills
For all Category 4 spills and spills from its owned and/or operated laterals that are caused by a failure or blockage in the lateral and that do not discharge to a surface water, the City shall:
Maintain records per section 6.14;
The City shall provide records upon request by State Water Board or Regional Water Board staff. Annually upload and certify a report, in an appropriate digital format, of all recordkeeping of spills to the online CIWQS Sanitary Sewer System Database, by February 1st after the end of the calendar year in which the spills occurred.
A spill from a City-owned and/or operated lateral that discharges to a surface water is a Category 1 spill; the City shall report all Category 1 spills per section 12.1 of Appendix G.
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-11
G-7 Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills”
If either (1) no spills occur during a calendar month or (2) only Category 4, and/or City-owned and/or operated lateral spills (that do not discharge to a surface water) occur during a calendar month, the City shall certify, within 30 calendar days after the end of each calendar month, either a “No-Spill” certification statement, or a “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” certification statement, in the online CIWQS Sanitary Sewer System Database, certifying that there were either no spills, or Category 4 and/or Non-Category 1 Lateral Spills that will be reported annually (per section 12.6 of Appendix G) for the designated month.
If a spill starts in one calendar month and ends in a subsequent calendar month, and the City has no further spills of any category, in the subsequent calendar month, the City shall certify “no-spills” for the subsequent calendar month.
If the City has no spills from its systems during a calendar month, but the City voluntarily reported a spill from a private lateral or a private system, the City shall certify “no-spills” for that calendar month.
If the City has spills from its owned and/or operated laterals during a calendar month, the City shall not certify “no spills” for that calendar month.
G-8 Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ)
The City shall update their previous year’s Annual Report, by April 1 of each year after the Effective Date of the General Order, for each calendar year (January 1 through December 31).
The Annual Report must be entered directly into the online CIWQS Sanitary Sewer System Database. The City’s Legally Responsible Official shall certify the Annual Report as instructed in CIWQS; The Annual Report must address, and update as applicable, the following items:
Population served;
Updated sewer system service area boundary map, if service area boundary has changed from original map submitted per section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of the General Order;
Number of system operation and maintenance staff:
oEntry level (less than two years of experience),
oJourney level (greater than two years of experience),
oSupervisory level, and
oManagerial level;
Number of operation and maintenance staff certified as a certified collection system operator by the California Water Environmental Association (CWEA), with:
APPENDIX G: REPORTING REQUIREMENTS
JANUARY 2025 G-12
oCorresponding number of certified collection system operator grade levels (Grade I, II, III, IV, and V); System information:
oMiles of system gravity and force mains,
oNumber of upper and lower service laterals connected to system, oEstimated number of upper and lower laterals owned and/or operated by the City, oPortion of laterals that is City’s responsibility,
oAverage age the major components of system infrastructure, oNumber and age of pump stations, and
oEstimated total miles of the system pipeline not accessible for maintenance; Name and location of the treatment plant(s) receiving sanitary sewer system’s waste; Name of satellite sewer system tributaries;
Number of system’s gravity sewer above or underground crossings of water bodies throughout system; Number of force main (pressurized pipe) above or underground crossings of water bodies throughout system;
Number of siphons used to convey waste throughout the sewer system; Miles of sewer system cleaned;
Miles of sewer system video inspected, or comparable (i.e., video closed-circuit television or alternative inspection methods);
System Performance Evaluation as specified in section 5.11 (System Performance Analysis) of the General Order;
Major spill causes (for example, root intrusion, grease deposition); System infrastructure failure points (for example, main, pump station, lateral, etc.); Ongoing spill investigations; and
Actions taken to address system deficiencies.
APPENDIX H: SSMP CHANGE LOG
Appendix H
Sewer System Management Plan Change Log
APPENDIX H: SSMP CHANGE LOG
JANUARY 2025 H-1
City of Compton
SSMP Change Log
DATE SSMP ELEMENT DESCRIPTION OF CHANGE/REVISION
MADE
CHANGE AUTHORIZED BY
APPENDIX H: SSMP CHANGE LOG
JANUARY 2025 H-2
DATE SSMP ELEMENT DESCRIPTION OF CHANGE/REVISION
MADE
CHANGE AUTHORIZED BY
APPENDIX I: SSMP MONITORING PARAMETERS
Appendix I
SSMP Monitoring Parameters
APPENDIX I: SSMP MONITORING PARAMETERS
JANUARY 2025 I-1
City of Compton
SSMP Monitoring Parameters
SSMP Element Parameters for Tracking
Effectiveness (Annual)
Date Evaluation of plan element
implementation and
effectiveness
Reviewed by
SSMP Goal and
Introduction
City is following SSMP Update
Schedule
Periodically review section
Organization Periodically review section
Legal Authority Periodically review section
Operations and
Maintenance
Program
Percentage of gravity sewer lines
cleaned
Percentage of sewer lines
inspected by televising
Number of lift station failures
Number of pipe failures
Regular training related to SSMP
requirements
Equipment inventory tracked
Periodically review section
Design and
Performance
Provisions
Periodically review section
APPENDIX I: SSMP MONITORING PARAMETERS
JANUARY 2025 I-2
SSMP Element Parameters for Tracking
Effectiveness (Annual)
Date Evaluation of plan element
implementation and
effectiveness
Reviewed by
Spill Emergency
Response Plan
Average and maximum response
time
Percent of total overflow volume
contained or returned to sewer
Compliance with notification,
monitoring, and reporting
requirements
Staff and contractors are
implementing the Spill Emergency
Response Plan
Perform regular training on the
Spill Emergency Response Plan.
Contain any spills and
prevent/minimize discharge to
waters of the State or any drainage
conveyance system
Minimize and remediate public
health impacts and adverse
impacts on beneficial uses of
waters of the State
Clean the spill area and drainage
conveyance system in a manner
that does not inadvertently impact
beneficial uses in the receiving
waters
Spill events are documented and
reported as required in the General
Order
Spill responses and assessed
Conduct annual review of Spill
Emergency Response Plan
Periodically review section
APPENDIX I: SSMP MONITORING PARAMETERS
JANUARY 2025 I-3
SSMP Element Parameters for Tracking
Effectiveness (Annual)
Date Evaluation of plan element
implementation and
effectiveness
Reviewed by
Sewer Pipe
Blockage Control
Plan
Number of blockages due to
FOG, rags, debris, etc.
Number of overflows due to
FOG, rags, debris, etc.
Number of FOG producing
facilities inspected
Number of enforcement
measures at FOG producing
facilities
An identification of sanitary
sewer system sections subject to
fats, oils, and grease blockages
and establishment of a cleaning
schedule
Implementation of source control
measures
Plan and schedule for a public
education and outreach program
Periodically review section
APPENDIX I: SSMP MONITORING PARAMETERS
JANUARY 2025 I-4
SSMP Element Parameters for Tracking
Effectiveness (Annual)
Date Evaluation of plan element
implementation and
effectiveness
Reviewed by
System
Evaluation,
Capacity
Assurance, and
Capital
Improvements
Number of spills due to capacity
limitations or wet weather
Date of completion of most
recent sewer master plan,
including flow metering and/or
hydraulic modeling
3-year backlog for capacity
improvement projects
Utilize CCTV inspection and
assessment and tracking system
deficiencies
Prioritize projects based on their
need for repair and replacement
Evaluate system deficiencies with
recurrent issues and how these can
be turned into rehabilitation or
replacement projects.
Creation of a schedule to complete
these projects
Document system evaluation and
condition assessment inspections
and activities
Determine solutions to address
infiltration & inflow (I/I), aging
infrastructure, corrosion due to
sulfuric acid, and sags in the
system due to unstable soil
Determine solutions to protect
from heavy rains, earthquakes, and
other impacts of climate change
Determine funding sources
Periodically review section
APPENDIX I: SSMP MONITORING PARAMETERS
JANUARY 2025 I-5
SSMP Element Parameters for Tracking
Effectiveness (Annual)
Date Evaluation of plan element
implementation and
effectiveness
Reviewed by
Monitoring,
Measurement and
Program
Modifications
Document SSMP information
Follow schedule for reviewing
SSMP information
Determine effectiveness of each
Plan Element
Assess the success of preventive
operation and maintenance
activities;
Update Plan procedures and
activities based on evaluation
Identify and illustrate spill trends
Periodically review section
Internal Audits Date of completion of last annual
audit
Audits are occurring during
original audit cycle
Audit is uploaded to CIWQS
within 6 months of due date
Deficiencies found during the
audit are addressed and
corrected
Periodically review section
Communication
Program
SSMP is uploaded/updated on
City’s website & CIWQS
Plan and schedule for a public
education and outreach program
Notification program to the
public for sewer system
management and information on
spills and discharges
Periodically review section
APPENDIX J: SSMP AUDIT RECOMMENDATION LOG
Appendix J
SSMP Audit Recommendation Log
July 15, 2025
TO: HONORABLE MAYOR AND CITY COUNCIL MEMBERS
FROM: CITY MANAGER
SUBJECT: A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON ACCEPTING THE 2025 SEWER MASTER PLAN
AND DIRECTING STAFF TO INCORPORATE ITS
RECOMMENDATIONS INTO FUTURE INFRASTRUCTURE
PLANNING
SUMMARY
This resolution formally accepts the 2025 Sewer Master Plan and authorizes staff to use its recommendations as a guiding document for planning future sewer infrastructure improvements. Acceptance of the plan does not authorize funding or implementation of individual projects at this time.
BACKGROUND
In 2023, the City of Compton launched the development of a comprehensive Sewer Master Plan to assess the condition and performance of its wastewater collection system. The plan was developed in response to aging infrastructure, increasing regulatory requirements, and the need to support ongoing and future development within the City.
The plan provides a comprehensive evaluation of the City’s existing sewer infrastructure and outlines a strategic roadmap for future improvements to ensure system reliability, regulatory compliance, and capacity for future growth.
The planning process included field manhole surveys, pipeline condition assessments, development of a Phase 1 sewer hydraulic model, capacity evaluations, identification of deficiencies and rehabilitation needs, updated cost estimates for required consent judgment projects, and a prioritized Capital Improvement Program (CIP).
STATEMENT OF ISSUE
The Sewer Master Plan identifies and prioritizes short-, mid-, and long-term investments in the City’s sewer infrastructure. It supports environmental sustainability, regulatory compliance, and efficient service delivery, while aligning with the City’s General Plan and regional planning goals. Key recommendations are to:
14.14.14. Staff Report – A Resolution of the City Council of the City of Compton Accepting the 2025 Sewer Master Plan and Directing Staff to Implement its Recommendations July 15, 2025, Page 2 of 2
Replace and rehabilitate aging sewer mains
Resolve a localized capacity deficiency
Implement a citywide sewer survey and GIS digitization initiative Invest in system improvements over a 10-year planning horizon
ALTERNATIVE
Staff is not recommending any alternatives at this time, as the Sewer Master Plan serves as a non-binding planning document and does not commit the City to any specific course of action.
FISCAL IMPACT
There is no direct fiscal impact associated with the acceptance of the Sewer Master Plan. Future projects identified in the plan will be brought forward individually for Council consideration and funding approval during the annual budget cycle or as part of the Capital Improvement Program (CIP) process.
RECOMMENDATION
Staff recommends that the City Council adopt the attached resolution accepting the completed Sewer Master Plan and directing staff to incorporate its recommendations into future planning, project development, and infrastructure investment efforts.
JACK GONG, P.E., S.E., PMP
CITY ENGINEER
APPROVED FOR FORWARDING:
WILLE A. HOPKINS, JR.
CITY MANAGER
RESOLUTION NO._________
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF COMPTON ACCEPTING THE 2025 SEWER MASTER PLAN AND DIRECTING STAFF
TO INCORPORATE ITS RECOMMENDATIONS INTO FUTURE
INFRASTRUCTURE PLANNING
WHEREAS, the City of Compton recognizes the importance of maintaining and improving its wastewater infrastructure to protect public health, ensure environmental stewardship, and support future growth; and
WHEREAS, the City Council authorized the preparation of a comprehensive Sewer Master Plan to assess the condition, capacity, and long-term needs of the City’s sewer collection system; and
WHEREAS, the Sewer Master Plan was prepared by Dudek in accordance with applicable industry standards and regulatory requirements; and WHEREAS, the Sewer Master Plan includes detailed assessments, hydraulic modeling, capital improvement recommendations, and prioritization of projects to guide the City’s sewer infrastructure investments over the next 10 years; and WHEREAS, the Sewer Master Plan does not commit the City to any specific project or expenditure, but serves as a strategic planning tool to guide future infrastructure investments; and
WHEREAS, the City Council has reviewed the final Sewer Master Plan and finds it to be consistent with the City’s General Plan and other adopted infrastructure and sustainability goals;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF COMPTON DOES HEREBY RESOLVE AS FOLLOWS:
SECTION 1.The City Council hereby accepts the completed Sewer Master Plan dated June 2025 as a guiding document for the planning, prioritizing, and developing sewer system improvements, subject to future funding and Council approval.
SECTION 2.The City Council directs City staff to incorporate the recommendations of the Sewer Master Plan into the City’s Capital Improvement Program (CIP) and to identify and pursue grant opportunities, partnerships, and other funding sources for future project implementation.
SECTION 3.The City Council further directs staff to periodically review and update the Sewer Master Plan as needed to reflect changes in land use, development patterns, regulatory requirements, and system performance.
SECTION 4.The City Clerk shall file copies of this Resolution with the offices of the City Manager, City Controller, City Clerk, City Attorney and the Public Works Engineering Department.
SECTION 5.The Mayor shall sign and the City Clerk shall attest to the adoption of this Resolution.
SECTION 6.The City Council encourages staff to make the 2025 Sewer Master Plan available to the public through the City’s website and community outreach materials.
Resolution No. __________
ADOPTED this ________ day of ________________, 2025.
_______________________________
EMMA SHARIF
MAYOR OF THE CITY OF COMPTON
ATTEST:
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
STATE OF CALIFORNIA
COUNTY OF LOS ANGELES
CITY OF COMPTON: ss
I, Satra D. Zurita, City Clerk of the City of Compton, hereby certify that the foregoing Resolution was adopted by the City Council of the City of Compton, signed by the Mayor and attested by the City Clerk, at a regular meeting thereof, held on the __________ day of ___________________, 2025.
That said Resolution was adopted by the following vote, to wit:
AYES: COUNCILMEMBERS-
NOES: COUNCILMEMBERS-
ABSTAIN: COUNCILMEMBERS-
ABSENT: COUNCILMEMBERS-
___________________________________
SATRA D. ZURITA
CITY CLERK OF THE CITY OF COMPTON
Sewer Master Plan Update
City of Compton
JUNE 2025
Prepared for:
CITY OF COMPTON
205 S. Willowbrook Avenue
Compton, California 90220
Contact: John Strickland, Project Manager
Prepared by:
605 Third Street
Encinitas, California 92024
Contact: Elizabeth Caliva, Project Manager
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Table of Contents
SECTION PAGE NO.
Acknowledgements ....................................................................................................................................................v Acronyms and Abbreviations......................................................................................................................................vi Executive Summary ....................................................................................................................................................1 ES-1 Key Project Objectives ......................................................................................................................1 ES-2 Service Area and System Overview ...................................................................................................2 ES-3 Future Flow Projections ....................................................................................................................2 ES-4 Collection System Hydraulic Model Development and Calibration ....................................................4 ES-5 Collection System Capacity Analysis .................................................................................................4 ES-6 Collection System Condition Assessment..........................................................................................5 ES-7 CIP Recommendations......................................................................................................................5 1 Introduction .................................................................................................................................................13
1.1 Background and Master Plan Objectives..........................................................................................13
1.2 Previous Master Plans .....................................................................................................................14
1.3 Service Area Overview.....................................................................................................................15
1.4 Summary of Scope of Work.............................................................................................................19
1.5 Report Organization........................................................................................................................19 2 Existing System Description .........................................................................................................................21
2.1 Gravity Pipelines .............................................................................................................................21
2.2 Inverted Siphons .............................................................................................................................22
2.3 Diversion Manholes.........................................................................................................................24
2.4 Lift Stations and Force Mains ..........................................................................................................26
2.5 LACSD Outfalls ...............................................................................................................................26
2.6 Land Use.........................................................................................................................................26 3 Existing and Future Dry Weather Flows........................................................................................................29
3.1 Population Summary ......................................................................................................................29
3.1.1 Existing Population ............................................................................................................29
3.1.2 Projected Population .........................................................................................................29
3.2 Existing Dry Weather Flows.............................................................................................................30
3.3 Future Dry Weather Flows ...............................................................................................................31
3.3.1 Near-Term (2030) Developments .......................................................................................32
3.3.2 Ultimate (2045) Developments...........................................................................................36
3.4 Modeled Existing and Future ADWF Summary ................................................................................37 4 Sewer Model Development and Calibration .................................................................................................38
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4.1 Existing Manhole Survey .................................................................................................................38
4.2 Flow Monitoring Program ...............................................................................................................41
4.2.1 Flow Monitoring Results.....................................................................................................41
4.2.2 Dry Weather Time Patterns................................................................................................42
4.3 Sewer Model Development.............................................................................................................44
4.3.1 Model Network Generation................................................................................................44
4.3.2 Existing Dry Weather Flows Allocation ...............................................................................45
4.3.3 Existing Wet Weather Flows Allocation..............................................................................46
4.4 Dry Weather Model Calibration.......................................................................................................48 5 Collection System Capacity Analysis ............................................................................................................52
5.1 Pipeline Design Criteria ...................................................................................................................52
5.2 Pipeline Deficiency Criteria..............................................................................................................53
5.3 Dry Weather Capacity Analysis........................................................................................................54
5.3.1 Existing (2023) Dry Weather Flow.......................................................................................54
5.3.2 Near-Term (2030) Dry Weather Flow..................................................................................56
5.3.3 Ultimate (2045) Dry Weather Flow .....................................................................................56
5.4 Wet Weather Capacity Analysis.......................................................................................................59
5.4.1 Existing (2023) Wet Weather Flow......................................................................................59
5.4.2 Near-Term (2030) Wet Weather Flow.................................................................................61
5.4.3 Ultimate (2045) Wet Weather Flow ....................................................................................61 6 Collection System Condition Assessment ....................................................................................................64
6.1 Condition Assessment Methodology...............................................................................................65
6.2 Condition Assessment Summary.....................................................................................................70 7 Capital Improvement Program .....................................................................................................................71
7.1 Pipeline Capacity Improvement Projects .........................................................................................71
7.2 Pipeline Condition Improvement Projects........................................................................................73
7.3 Sewer System Survey and Digitization Program..............................................................................74
7.4 2016 Consent Judgment Projects ....................................................................................................76
7.5 Recommended Projects Cost Summary ..........................................................................................78
7.6 Potential Funding Sources ..............................................................................................................84 TABLES
Table ES.1. Recommended Capacity Improvement Projects Cost Summary................................................................7 Table ES.2. Recommended Condition Improvement Projects Cost Summary .............................................................9 Table ES.3. Sewer System Survey and Digitization Program Cost Summary..............................................................10 Table ES.4. 2016 Consent Judgment Planned Capital Improvement Projects Cost Summary.....................................10 Table ES.5. Estimated Cost for Projects Required by 2016 Consent Judgement .........................................................11 Table 2.2 Inverted Siphon Summary ........................................................................................................................23
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Table 2.3 Field Survey Results of Potential Diversion Manholes (per City’s Sewer Index Map) ..................................25 Table 2.4 Land Use Summary ...................................................................................................................................27 Table 3.1 Existing and Projected Population Estimates ............................................................................................30 Table 3.2 Measured Dry Weather Flows at 2023 Flow Monitored Sewersheds Only..................................................31 Table 3.3 Proposed Near-Term (2030) Developments and Estimated ADWF1,2 .........................................................33 Table 3.4 Unit Sewer Flow Generation Factors by Land Use Type ............................................................................35 Table 3.5 Near-Term Dry Weather Flows – Phase I Model Only ................................................................................36 Table 3.6 Existing and Future ADWF – Phase I Model Only .......................................................................................37 Table 4.1 Top Water Users in Phase I Sewer Model ..................................................................................................45 Table 5.1 Sewer Design Criteria – Pipelines ..............................................................................................................52 Table 5.4 Existing (2023) System Pipeline Capacity Deficiencies – Simulated PWWF ...............................................59 Table 5.5 Near-Term (2030) System Pipeline Capacity Deficiencies – Simulated PWWF...........................................61 Table 6.2 Pipeline Condition Grades ........................................................................................................................69 Table 6.3 Condition Assessment Recommendations Summary ................................................................................70 Table 7.1 Recommended Pipeline Capacity Improvement Projects Summary...........................................................71 Table 7.2 Pipeline Condition Improvement Projects Summary .................................................................................73 Table 7.3. Sewer System Survey & Digitization Program Summary...........................................................................74 Table 7.4 2016 Consent Judgment Planned Capital Improvement Projects1 ..............................................................76 Table 7.5 2016 Consent Judgment Sewer Master Plan Projects1 ................................................................................77 Table 7.6. Recommended Capacity Improvement Projects Cost Summary ...............................................................79 Table 7.7. Recommended Condition Improvement Projects Cost Summary ..............................................................79 Table 7.8. Sewer System Survey and Digitization Program Cost Summary ...............................................................80 Table 7.9. 2016 Consent Judgment Planned Capital Improvement Projects Cost Summary ......................................81 Table 7.10. Estimated Cost for Projects Required by 2016 Consent Judgement ........................................................82 Table 7.11. Potential Funding Sources .......................................................................................................................84
FIGURES
Figure ES.1 City of Compton Service Area ...........................................................................................................3 Figure ES.2 Recommended Pipeline Capacity Improvement Project....................................................................8 Figure 1.2 City of Compton Service Area..........................................................................................................17 Figure 1.3 Monthly Climate Normals (1991-2020) at Long Beach Airport .........................................................18 Figure 2.2 Distribution of Land Use Types (Source: Draft 2030 City of Compton General Plan Land Use Element) .......................................................................................................................................................28 Figure 4.1 2023 Manhole Survey and Flow Monitor Locations..........................................................................40 Figure 4.2 Dry Weather Hourly Time Patterns..................................................................................................43 Figure 4.3 Model RDII Hydrograph...................................................................................................................47 Figure 5.5 Near-Term (2030) Peak Wet Weather Flow Capacity Analysis Results – Maximum d/D of Modeled Pipelines .........................................................................................................................................62
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Figure 5.6 Ultimate (2045) Peak Wet Weather Flow Capacity Analysis Results – Maximum d/D of Modeled Pipelines .........................................................................................................................................63 Figure 6.1 156 th St – Crack Multiple ..................................................................................................................67 Figure 6.2 Holly Ave – Fracture Circumferential ...............................................................................................67 Figure 6.3 Chester Ave – Broken Soil Visible ....................................................................................................67 Figure 6.4 Alameda St – Broken.......................................................................................................................67 Figure 6.5 Stoneacre Ave – Joint Offset Large .................................................................................................68 Figure 6.6 N Palmer St (Alley) – Deposits Attached Encrustation.....................................................................68 Figure 6.7 134 th St (Easement) – Tap Break-In Intruding ..................................................................................68 Figure 6.8 Poinsettia Ave – Roots Ball Lateral..................................................................................................68 Figure 6.9 Caldwell St – Collapse .....................................................................................................................68 Figure 7.1 Recommended Pipeline Capacity Improvement Project PCAP-1 .....................................................72 Figure 7.2 Sewer System Survey and Digitization Program..............................................................................75
APPENDICES
A City of Compton Sewer Index Map (provided by City)
B ADS Environmental Services 2023 Flow Monitoring Report C Pipeline Condition Assessment Data and Map
D Recommended CIP Project Cost Estimate Details
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Acknowledgements
We appreciate the combined efforts of the entire project team in the development and preparation of this Sewer Master Plan Update. Our project team includes staff from the City of Compton and Dudek. The following individuals are respectfully and gratefully acknowledged for their contributions to the completion of this report:
City of Compton
Jack Gong, City Engineer
John D. Strickland, Project Manager
Marcus Harris, Interim Street Superintendent
Jose Garfias, Interim Water Department General Manager
Jessica Larkin, Senior Planner
Dudek
Russ Bergholz, P.E., Principal-in-Charge
Elizabeth Caliva, P.E., Project Manager
Zoey Wang, P.E., Senior Engineer
Jenny Li, P.E., Senior Engineer
Shannon Brown, P.E., Senior Engineer
Katerina Jowid, Project Engineer
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Acronyms and Abbreviations
Acronym/Abbreviation Definition
afy acre-feet per year
ac acre
ADWF average dry weather flow
CIP Capital Improvement Program
City City of Compton
d/D depth to diameter ratio
du or DU dwelling unit
GIS Geographic Information System
gpd gallons per day
gpd/acre gallons per day per acre
gpd/DU gallons per day per dwelling unit
HP horsepower
i.e. that is
I/I inflow and infiltration
LF Lineal feet
MGD million gallons per day
PDWF peak dry weather flow
PVC polyvinyl chloride
PWWF peak wet weather flow
RCP reinforced concrete pipe
SSMP Sewer System Management Plan
SSO sanitary sewer overflow
UNK unknown
VCP vitrified clay pipe
WDR Waste Discharge Requirements
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Executive Summary
This Executive Summary provides highlights from the Sewer Master Plan report, summarizing the key findings and recommendations of each section. The Executive Summary consists of the following sections:
Key Project Objectives
Service Area and System Overview
Future Flow Projections
Collection System Hydraulic Model Development and Calibration Collection System Capacity Analysis
Capital Improvement Program (CIP) Recommendations
ES-1 Key Project Objectives
In January 2023, the City of Compton (City) retained Dudek to prepare the City’s citywide sewer collection system master plan. The goal of this project was to develop a basic understanding of the sewer collection system needs, both existing and future, and establish a management plan that supports those needs. At the time, the City did not have any previous model nor any GIS for the sewer collection system. As a result, Dudek proposed a multi-phase approach for the City to start to survey and build the sewer GIS. 100 manholes were surveyed in 2023, which covered the extent of this Phase 1 effort.
The 2025 Sewer Master Plan Update addresses the following key objectives:
1. Review and summarize available historical data relating to the City’s existing sewer system, including the 2008 Master Sewer Study.
2. Survey the existing invert elevations of approximately 100 manholes located throughout the City’s sewer system. Manholes were strategically selected based on their locations within major sewersheds using an index map provided by the City, included in Appendix A.
3. Create a hydraulic sewer model using invert data collected during field survey of the City’s manholes. This model will be referred to as the initial phase, or Phase I, of the City’s new sewer system model. The City should continue to develop and update the model as part of future planning efforts.
4. Conduct sewer flow monitoring at six (6) locations within the City’s sewer system to develop dry weather flow patterns used in the hydraulic modeling.
5. Perform capacity analysis on the Phase 1 model developed for this project and develop improvement recommendations for any capacity deficiencies identified.
6. Perform condition assessment on all pipelines with PACP scores of 4 and 5 and develop rehabilitation recommendations.
7. Develop a list of recommended Capital Improvement Program (CIP) project recommendations for the City’s sewer collection system.
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ES-2 Service Area and System Overview
The City's existing sewer collection system includes gravity pipelines, inverted siphons, diversion manholes, and outfalls into the LACSD trunk sewer system. At the time of writing this Sewer Master Plan Update, information related to the City’s existing collection system was not available in a digital format such as a GIS (Geographic Information System) database. As a result, much of the data provided herein was primarily based on the 2008 Master Sewer Study, supplemented with data from a 2023 manhole survey and additional material provided by City staff. The extent of the City’s sewer service area is shown in Figure ES.1.
The City's sewer collection system comprises approximately 147 miles of gravity pipelines, with most pipes being 8 inches or smaller in diameter. The system, largely constructed between 1940 and 1959, predominantly uses vitrified clay pipe (VCP) material. The City operates an entirely gravity-based sewer system, with no lift stations or force mains.
Sewer flows are conveyed to the LACSD trunk system via 101 outfalls and treated at the A.K. Warren Water Resource Facility before being discharged into the Pacific Ocean.
ES-3 Future Flow Projections
Chapter 3 of this Sewer Master Plan Update provides an analysis of existing and future dry weather flows within the City's service area. Flow monitoring data from 2023 was used to estimate current dry weather sewer flows for five sewer basins. Future system flows were projected based on population growth and planned developments.
Population Summary: The City's population was 98,447 in 2020, with a modest growth rate of 2% from 2010 to 2020.
By 2045, the population is projected to reach 103,100, reflecting a 4.6% increase over 25 years. The Regional Housing Needs Allocation (RHNA) requires the City to accommodate 1,004 new dwelling units by 2029, anticipated to contribute to population growth within the city.
Existing Dry Weather Flows: The 2023 flow monitoring data provides partial estimates of current dry weather flows.
The data indicates an average dry weather flow (ADWF) of 1.55 million gallons per day (MGD) and a peak dry weather flow (PDWF) of 2.13 MGD across monitored sewersheds. This data helps establish a baseline for understanding the system's capacity and planning future improvements.
Future Dry Weather Flows: Two future scenarios are considered: Near-Term (2030) and Ultimate (2045). The Near- Term scenario includes planned developments and the RHNA requirement, projecting an additional 0.041 MGD in ADWF. The Ultimate scenario applies a system-wide multiplier based on population growth, resulting in a total ADWF of 1.62 MGD by 2045. These projections help the City plan for infrastructure upgrades to accommodate future demand.
Unit Sewer Flow Generation Factors: Chapter 3 also develops unit generation factors for different land use types, using 2023 flow data and standards from comparable agencies. These factors are essential for estimating sewer flows from new developments and changes in land use, ensuring accurate planning and resource allocation.
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Figure ES.1 City of Compton Service Area
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ES-4 Collection System Hydraulic Model Development and
Calibration
Chapter 4 of the Sewer Master Plan Update details the development and calibration of the City's new AquaTwin Sewer model. The model was constructed using data from a 2023 field survey of 100 representative manholes, which provided current invert elevations and pipe diameters. This data was essential for calibrating Phase I of the model to existing dry weather flows. The model, developed within a GIS-based software program, can be exported to a GIS database for future asset management.
2023 Flow Metering Program: A temporary flow monitoring program was implemented in 2023, featuring six strategically placed flow monitors to measure sewer flows within designated sewersheds. The data collected from these monitors was used to develop unique dry weather hourly time patterns for each sewershed, reflecting typical daily variations in sewer flow. The flow monitoring program revealed some discrepancies in the City's sewer index map and highlighted areas requiring further investigation. This flow metering data was used the calibrate Phase 1 of the hydraulic model using the AquaTwin Sewer program. This initial phase, or Phase I, of the model focuses on six sewersheds, although one (sewershed FM 05) was excluded due to zero flow measurements during the monitoring period.
Model Network Generation: The model network was developed using a combination of existing sewer maps, field survey data, and satellite imagery. The process faced challenges due to the lack of a GIS database and inconsistencies between field data and the City's sewer index map. Accurate invert elevations and pipeline diameters were collected for approximately 150 manholes, with interpolations made for intermediate manholes. The model was adjusted to reflect any observed discrepancies and improvements not recorded in the index map.
Flow Allocation and Calibration: Dry weather flows were allocated to the model based on average measured flows from the 2023 monitoring data. Residential sewersheds were calibrated using weekend flows, while commercial and industrial sewersheds used weekday flows. The model was calibrated to ensure that both average and peak dry weather flows were within 10% of the measured values. Wet weather flows were not directly calibrated due to the lack of significant storm data, but an artificial diurnal pattern was developed to simulate probable wet weather conditions.
The calibration results showed a high degree of accuracy, with all sewersheds achieving less than 1% difference between modeled and measured flows.
ES-5 Collection System Capacity Analysis
Chapter 5 of the Sewer Master Plan Update presents a detailed analysis of the City's sewer system capacity under various conditions. The analysis used a newly created and calibrated sewer model to evaluate existing (2023), near- term (2030), and ultimate (2045) dry and wet weather flow scenarios. The results help identify potential capacity deficiencies and provide guidelines for future improvements.
Pipeline Design Criteria: The chapter establishes design criteria for sewer pipelines, including minimum diameters, velocities, and Manning's roughness coefficient. These criteria ensure that new and existing pipelines can handle peak dry weather flows (PDWF) and allow for potential wet weather flows. The criteria also include a maximum depth-to- diameter ratio (d/D) to prevent pipelines from flowing full, which could increase the risk of sanitary sewer spills.
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Dry Weather Capacity Analysis: The capacity of the City's sewer system was analyzed under existing, near-term, and ultimate dry weather flow conditions. The analysis revealed that no City-owned gravity pipelines included in the Phase 1 hydraulic model are expected to exceed the deficiency criteria under existing, near-term or buildout dry weather conditions.
Wet Weather Capacity Analysis: The chapter also evaluates the sewer system's capacity under simulated wet weather flow conditions. The analysis used conservative peaking factors to estimate average and peak wet weather flows. The results indicate that one segment of a 6-inch pipeline downstream of a diversion manhole located at the intersection of W Tichenor St and S Northwood Ave is anticipated to exceed the maximum d/D under existing, near- term, and ultimate wet weather conditions. Based on the survey data, this diversion manhole included two outlet pipelines, one 6-inch diameter to the east and one 8-inch diameter to the south, with the 6-inch pipeline being the preferred outfall flow direction. Modeling confirmed that modifying the diversion manhole such that flows are directed toward the 8-inch outlet pipe would relieve this capacity limitation.
Overall, it was found that in the portions of the City’s sewer collection system included in the hydraulic model, the City’s system is operating with sufficient capacity through buildout conditions.
ES-6 Collection System Condition Assessment
Chapter 6 of the Sewer Master Plan Update presents the results of a comprehensive pipeline condition assessment.
Closed Circuit Television (CCTV) inspections were conducted on 169 City-owned gravity main segments, totaling approximately 8.6 miles. The assessment aimed to identify structural and physical defects and recommend appropriate rehabilitation or repair methods. These methods range from trenchless techniques like Cured-In-Place Pipe (CIPP) lining to more invasive procedures such as excavation point repairs and complete pipe replacements.
The assessment prioritized pipelines with a PACP (Pipeline Assessment Certification Program) condition grade of 4 or 5, as mandated by the 2016 Consent Judgment. The PACP grading system categorizes defects from 1 (excellent) to 5 (immediate action required). The methodology involved reviewing CCTV reports, recording defects, identifying suitable repair methods, and preparing cost estimates. Common defects found during the assessment included cracks, fractures, root intrusions, and deposits.
Various rehabilitation and repair methods were recommended based on the severity and type of defects. These included CIPP lining for cracks and fractures, excavation point repairs for severe defects, and heavy cleaning for significant deposits. The assessment also highlighted the importance of minimizing costly open trench construction by using in-situ methods wherever possible.
The condition assessment resulted in specific recommendations for the City's collection system, including 34 segments for complete replacement, 36 for excavation point repairs, 99 for CIPP lining, 18 for trimming intrusions, and 60 for heavy cleaning. The locations of these recommendations were mapped on the City's sewer system index map, providing a clear plan for addressing the identified defects.
ES-7 CIP Recommendations
Capital Improvement Program (CIP) project recommendations and planning level cost estimates developed for this study include recommended pipeline improvement projects to address both capacity and condition deficiencies in the
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City's sewer collection network. One capacity-related project is recommended, as presented in Table ES.1 and shown graphically in Figure ES.2.
Five condition-related projects are recommended to correct structural deficiencies found in sewer pipelines with PACP scores of 4 and 5, as required by the 2016 Consent Judgement. These projects are presented in Table ES.2. The proposed CIP also recommends a multi-year phased program for field surveys and digitization of the entire sewer collection system network, as shown in Table ES.3.
Finally, updated costs were developed for the Planned Capital Improvement Projects and Sewer Master Plan Projects as presented in Exhibit B of the 2016 Consent Judgement, which are presented in Tables ES.4 and ES.5, respectively.
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Table ES.1. Recommended Capacity Improvement Projects Cost Summary Project Costs by Planning Scenario ($1,000)
Project ID Project Name Description Justification
Existing
(2025)
Near-Term
(2030)
Ultimate
(2045)
PCAP-1 Diversion
Manhole ID 3-5-
103 Modification
Modify diversion manhole 3-5-103 located at
the intersection of W Tichenor St and S
Northwood Ave to direct flow into the 8-inch
outlet pipe to the south.
Maximum d/D = 1.0
anticipated under PWWF
conditions in the preferred 6-
inch diameter outlet pipeline
$29 -- --
TOTAL: $29 -- --
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Figure ES.2 Recommended Pipeline Capacity Improvement Project
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Table ES.2. Recommended Condition Improvement Projects Cost Summary Project Cost
($1,000)Project
ID Project Name Description Justification Existing (2025) PCON-1 Complete Pipe Replacement Replace 107 LF of existing 6-inch gravity main Replace 7,944 LF of existing 8-inch main
Replace 320 LF of existing 10-inch main
Multiple existing pipeline segments are in
very poor condition with several structural
defects
$4,781
PCON-2 Excavation Point Repairs Excavation point repair on the following gravity segments: One (1) 6-inch main; Two (2) 8-inch
mains; One (1) 10-inch main
Pipeline segments have one significant
structural defect or encrusted/compacted
deposits that severely impact normal sewer
flow.
$247
PCON-3 Excavation Point Repairs &
Full CIPP Lining
Excavation point repair and CIPP lining of thirty-
two (32) gravity segments, from manhole to
manhole: 179 LF of 6-inch main; 9,576 LF of 8-inch
main; 470 LF of 15-inch main
Pipeline segments have one significant
structural defect and multiple cracks or
minor fractures.
$3,443
PCON-4 CIPP Lining - No Excavation CIPP lining of sixty-seven (67) gravity segments, from manhole to manhole: 304 LF of 6-inch main;
18,013 LF of 8-inch main; 691 LF of 12-inch main.
Heavy cleaning of 8,602 LF of main prior to CIPP
lining.
Pipeline segments have multiple cracks or
minor fractures.
$3,883
PCON-5 Heavy Cleaning - No
Excavation
Heavy cleaning of 7,140 LF of existing gravity
main. Heavy cleaning includes removal of
encrusted deposits and/or root balls in laterals
connected to gravity mains.
Pipeline segments have encrusted grease
deposits, debris, and/or intruding roots.
$72
TOTAL: $12,426
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Table ES.3. Sewer System Survey and Digitization Program Cost Summary Project
ID Project Name Description Justification
Project Cost
($1,000)1
SUR-1 Sewer System
Survey Phase 1
Survey City-owned sewer collection system from in the vicinity of El Segundo Blvd south to Compton Blvd, and from City’s western limits east to Alameda St. Convert field survey data to GIS database. (Est. 500 manholes)
$250
SUR-2 Sewer System
Survey Phase 2
Survey City-owned sewer collection system from Stockton St south to Compton Blvd, and from Alameda St east to City’s eastern limits.
Convert field survey data to GIS database. (Est. 400 manholes) $200
SUR-3 Sewer System
Survey Phase 3
Survey City-owned sewer collection system from Compton Blvd south to Victoria St, and from City’s western limits east to Alameda St. Convert field survey data to GIS database. (Est. 500 manholes)
$250
SUR-4 Sewer System
Survey Phase 4
Survey City-owned sewer collection system from Compton Blvd south to Greenleaf Blvd, and from Alameda St east to City’s eastern limits.
Convert field survey data to GIS database. (Est. 400 manholes) Create a full, accurate and up-
to-date sewer system GIS for
the City. This will provide the
City with the ability to create a
full system hydraulic model.
$200
TOTAL: $900
Note:
1 Cost based on estimates of total numbers of manholes in each survey zone.
Table ES.4. 2016 Consent Judgment Planned Capital Improvement Projects Cost Summary Project ID Project Name Description1 Justification
Project Cost
($1,000)1
CIP 10-4 Fruit Town Sewer Replacement (Oleander) Replace 11,000 LF of 8-inch diameter pipe with 10-inch diameter pipe
$7,040
CIP 10-5 Willowbrook Culver Sewer Replacement Replace 5,000 LF of 8-inch diameter pipe with 10-inch diameter pipe
$3,200
CIP 10-21 Pearl Ave Sewer Replacement Replace 9,600 LF of 8-inch diameter pipe with 10-inch diameter pipe
Required by 2016 Consent
Judgement
$6,144
$16,384
Notes:
1 Existing and proposed diameters are assumed "best guess" from 2008 Master Sewer Study.
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Table ES.5. Estimated Cost for Projects Required by 2016 Consent Judgement Project
Number Project Description
Length
(LF)
Ex.
Diam
(inch)1
Prop.
Diam
(inch)1
Total Est.
Constr.
Cost
($1,000)2
Markup
(60%)
Total Est.
Project
Cost
($1,000)
1-1 Myrrh & Mid of Williams and
Gibson to North
1,156 8 10 $463 $278 $741
1-2 Laurel & Harris to South to
South
663 8 10 $266 $160 $426
1-3 Rosecrans between
Castlegate & Cookace to
West
682 8 10 $273 $164 $437
2-6 218 ft S Cypress and Appila
to South
398 8 10 $160 $96 $256
2-7 Laurel and Sherrer to SE 248 8 10 $100 $60 $160
3-12 Rosecrans & Oleander to
East
677 8 10 $271 $163 $434
3-15 Rosecrans & Acacia to East 400 8 10 $160 $96 $256 4-17 Grandee & 136th to East 268 10 15 $161 $97 $258 4-18 Compton & Willowbrook to
East
544 10 15 $327 $197 $524
4-20 Caldwell and Wilmington to
North
184 10 15 $111 $67 $178
5-22 Poplar & Oleander to East 2,171 8 10 $869 $522 $1,391 5-26 Palmer & Tamarind to East 204 8 10 $ 82 $ 50 $132 5-27 325 ft S of Willowbrook to
East
482 8 10 $193 $116 $309
5-28 240 ft N of Elm &
Willowbrook to South
1,545 8 10 $618 $371 $989
5-29 Popular & Tamarind to East 250 8 10 $100 $60 $160 5-30 Elm & Willowbrook to East 782 8 10 $313 $188 $501 5-31 Carson Pl & Alameda to
West
182 8 10 $ 73 $44 $117
5-32 190 ft S of Carson Pl &
Alameda to West
170 8 10 $ 68 $41 $109
6-33 Spruce & Pacific to West 150 8 10 $ 60 $36 $96 6-34 Rosecrans & Pacific to West 1,219 8 10 $488 $293 $781 6-35 Rosecrans & Tajauta to West 1,022 8 10 $409 $246 $655 6-36 Rosecrans & Parmalee to
West
461 8 10 $185 $111 $296
6-37 Rosecrans & Central to East 103 8 10 $42 $26 $68 6-40 Palmer & Wilmington to
West
397 8 10 $159 $96 $255
6-41 185 ft W of Poplar & Paulson
to East
377 8 10 $151 $91 $242
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Project
Number Project Description
Length
(LF)
Ex.
Diam
(inch)1
Prop.
Diam
(inch)1
Total Est.
Constr.
Cost
($1,000)2
Markup
(60%)
Total Est.
Project
Cost
($1,000)
6-42 93 ft W of Compton &
Nester to South
50 8 10 $20 $12 $32
6-44 136th & Slater to East 61 8 10 $25 $15 $40
6-45 134th & Slater to East 880 8 10 $352 $212 $564
6-46 134th & Bahama to NE, then
North to Central
1,052 8 10 $421 $253 $674
6-47 South of 134th & Central to
East
1,241 8 10 $497 $299 $796
8-48 Laurel & Santa Fe to North 325 12 15 $195 $117 $312 8-49 350 ft N of Myrrh & Santa Fe
to South
777 12 15 $467 $281 $748
8-50 Alondra & Santa Fe to North 599 12 15 $360 $216 $576 8-51 157 ft W of Alondra &
Chester to South
1,328 12 15 $797 $479 $1,276
9-52 134th & Salinas to East 1,308 8 10 $524 $315 $839 9-53 139th & McKinley to North 1,632 8 10 $653 $392 $1,045 9-54 139th & McKinley to West 473 8 10 $190 $114 $304 10-55 Compton & Bullis East 5 8 10 $2 $2 $4
10-56 Alondra & Long Beach to
North
518 8 10 $208 $125 $333
TOTALS: 24,984 -- -- $10,813 $6,501 $17,314
Notes:
1 Existing and proposed diameters are assumed "best guess" from 2008 Master Sewer Study. 2 Assumes replacement cost of $40/in-diam/LF.
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1 Introduction
This Sewer Master Plan Update report for the City of Compton (City) evaluates the capacity and condition of the City’s existing wastewater collection system and provides recommendations for future improvement projects. The following introduction section provides background information on the scope and objectives of the Master Plan Update, previous master plan studies, the City’s service area, and the contents and organization of this report.
1.1 Background and Master Plan Objectives
In January 2023, the City retained Dudek to prepare its Sewer Master Plan Update. A comprehensive study of the City’s sewer system was last completed in 2008. The 2008 master plan concluded that 95% of the City’s sewer system had sufficient capacity to handle existing and future flow conditions, while 5% of the system required upgrading to meet performance standards, recommending $23.8M in system improvements.
In September 2016, the City received a Notice of Entry of Judgment (Consent Judgment) from the State of California and the Los Angeles Regional Water Quality Control Board (LARWQCB) for failure to comply with the State Water Resources Control Board’s Statewide General Waste Discharge Requirements for Sanitary Sewer Systems (Sanitary Sewer Systems General Order). The Sanitary Sewer Systems General Order requires public agencies that own and operate sewer systems to implement sewer system management plans and report all sanitary sewer spills to the Board. The Consent Judgement detailed a list of action steps with which the City must comply or risk further penalty.
This included requiring the City to construct all upgrades recommended by the 2008 master plan and perform condition assessment on pipelines receiving the poorest condition grades during CCTV inspection.
This Sewer Master Plan Update analyzes the capacity and condition of the City’s existing collection system using currently available data and research conducted during the process of evaluating both the flows and existing condition of the collection system, culminating in a new Capital Improvements Program (CIP) schedule intended to meet existing and future development needs and enhance the system’s operational resilience. The City does not maintain a geographical information system (GIS) database or other digitized network of its sewer collection system; therefore, a portion of this effort was supportive of developing this resource. This Sewer Master Plan will support the City in complying with several items listed in the Consent Judgement, including development of a Flow and Capacity Study and assessment of Grade 4 and 5 condition pipelines. An updated Sanitary Sewer Management Plan (SSMP Update), also required by the Consent Judgement, was performed under this contract. The City’s SSMP Update is included under separate cover.
The 2025 Sewer Master Plan Update addresses the following key objectives:
1. Review and summarize available historical data relating to the City’s existing sewer system, including the 2008 Master Sewer Study.
2. Survey the existing invert elevations of approximately 100 manholes located throughout the City’s sewer system, which accounts for approximately 3.5% of the total number of manholes in the City’s system.
Manholes were strategically selected based on their locations within major sewersheds using an index map provided by the City, included in Appendix A.
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3. Create a hydraulic sewer model using invert data collected during field survey of the City’s manholes. This model will be referred to as the initial phase, or Phase I, of the City’s new sewer system model. The City should continue to develop and update the model as part of future planning efforts.
4. Conduct sewer flow monitoring at six (6) locations within the City’s sewer system to develop dry weather flow patterns.
5. Calibrate Phase I of the City’s new sewer model to current (Summer 2023) dry weather flow patterns, with the understanding that significant portions of the existing system were not surveyed and could therefore not be modeled nor calibrated to existing flows.
6. Perform capacity evaluation of the modeled collection system under existing and future (near-term and ultimate) conditions.
7. Perform condition assessment on Grade 4 and 5 pipeline segments using CCTV data provided by the City.
8. Develop a 10-year Capital Improvements Program (CIP) and corresponding planning-level engineer’s cost opinion for recommended projects to address capacity and/or condition deficiencies within the City’s sewer system.
9. Update the City’s Sanitary Sewer Management Plan (SSMP), including the Spill Emergency Response Plan, SSMP Audit and other requirements (under separate cover).
1.2 Previous Master Plans
The City’s previous Master Sewer Study was completed in April 2008 and included the development of a H2OMap Sewer model of the City’s collection system. However, the H2OMap Sewer model could not be located for use or reference in this Sewer Master Plan Update.
No flow monitoring data was collected as part of the 2008 Master Sewer Study. Therefore, the H2OMap Sewer model was not calibrated to existing sewer flows observed in the field. Rather, the maximum potable water consumption of each customer, determined from water meter readings recorded between 2006 and 2007, was used to directly allocate sewer flows throughout the model assuming a 100% return to sewer ratio. Additionally, a future sewer flow scenario was developed based on land use data from the City’s General Plan and unit generation factors.
The results of the 2008 model capacity analyses indicated that 95% of the City’s existing collection system was not anticipated to exceed capacity limitations under existing or future flow conditions. A traditional wet weather analysis based on a design storm was not performed due to the absence of flow monitoring data. Instead, an inflow and infiltration (I&I) analysis was completed using an assumed I&I rate of 3% of peak dry weather flows throughout the system. The Master Sewer Study concluded that I&I does not significantly impact the overall capacity of the City’s existing system. However, no in-line flow monitoring or condition assessment data was presented to validate this conclusion or the assumed I&I rate of 3%.
The 2008 Study identified ten (10) CIP projects for completion over a ten-year period. The total estimated cost of the CIP program was $23.8 million in 2008, with $12.3 million estimated for addressing existing system deficiencies and $11.5 million for anticipated deficiencies under the future flow scenario. Each of the 10 CIP projects was comprised of a series of individual pipeline replacement projects, seemingly grouped by priority and spatial proximity, ranging in total length from 2,300 to 6,200 LF. According to City staff, as of 2025 the City has completed two of the individual
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recommended projects, the Compton/Wilmington Area Sewer Replacement Project and the Wilmington/Alondra Sewer Restoration Project.
Lastly, the 2008 Study did not assess the existing physical condition of the City’s collection system. Instead, it was recommended the City conduct CCTV inspections within areas of the collection system identified as deficient by the model capacity analyses or City maintenance staff, as well as a random selection (approximately 10%) of the existing system.
1.3 Service Area Overview
The City of Compton was incorporated in 1888. Figure 1.1 presents a regional map highlighting the City’s location within Los Angeles County in southern California. The City’s current population is approximately 96,000, estimated to be approximately 95% built out.
The City is approximately 10 square miles in area and located 12 miles south of downtown Los Angeles. As shown in Figure 1.2, the City of Compton is surrounded by the City of Lynwood to the northeast, Paramount to the east, Long Beach to the southeast, and Carson to the southwest. Various unincorporated communities border the City of Compton to the north, east, south, and northwest.
The Street Maintenance Division of the Public Works Department is responsible for operation and maintenance of the City’s sewer collection system. The City of Compton Water Department is the primary potable water service provider within the City for approximately 80% of residents. Other residents are served by private water companies including Golden State Water, Long Beach Water, Sativa Water, and California Water Companies.
Wastewater treatment is provided by Los Angeles County Sanitation District (LACSD), a regional agency that collects and treats sewage from municipalities throughout Los Angeles County. According to the 2008 Master Sewer Study, the City’s collection system discharges into the LACSD trunk system via 101 outfalls.
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Figure 1.1 Regional Map
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Figure 1.2 City of Compton Service Area
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The National Weather Service (NWS) does not collect climate data within the City of Compton. Using data collected at the closest NWS location in Long Beach Airport, approximately 12 miles southwest of the City, the City’s annual low and high average temperature are estimated at 56°F and 74°F, respectively. The average total precipitation recorded within the City each year is approximately 12 inches, with most rainfall occurring between November and March. The following Figure 1.3 summarizes the monthly climate normals (i.e., average of data collected over the last 30 years) recorded at Long Beach Airport.
Figure 1.3 Monthly Climate Normals (1991-2020) at Long Beach Airport Note:
Source: NOAA Online Weather Data / NOWData)
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1.4 Summary of Scope of Work
The following tasks are included in the scope of this Sewer Master Plan Update.
1. Data Collection and Review of Existing Sewer System
2. Field Survey of Existing Manholes (100 Total)
3. Temporary Sewer Flow Monitoring and Data Analysis
4. Hydraulic Sewer Model Development and Calibration
5. Model Capacity Analysis
6. CCTV Condition Assessment of all Pipeline Assessment Certification Program (PACP) Grade 4 and 5 Pipelines
7. Development of CIP and Planning-Level Cost Estimates
8. Sanitary Sewer Management Plan Audit and Update (Under separate cover)
9. Report Delivery and Presentation to City Stakeholders
1.5 Report Organization
This Sewer Master Plan Update report is organized into the following sections:
Section 1 Introduction – Describes the background, objectives, scope of work, and structure of the report.
Summarizes key characteristics of the City’s sewer collection system and service area. Section 2 Existing System Summary – Describes elements of the City’s existing collection system including siphons, diversion manholes, and outfalls. Summarizes the existing distribution of land use types within the City.
Section 3 Existing and Future Dry Weather Flows – Estimates the City’s existing dry weather flows using flow monitoring data and anticipated future flows based on known development activity. Section 4 Sewer Model Development and Calibration – Summarizes the 2023 field survey and flow monitoring program, development of the City’s hydraulic sewer model, allocation of existing dry weather flows, and model calibration results.
Section 5 Collection System Capacity Analysis – Presents the results of the capacity analyses performed on the City’s collection system under existing, near-term, and ultimate flow conditions. Section 6 Collection System Condition Assessment – Summarizes the methodology and results of the condition assessment completed on pipelines within the City’s collection system. Section 7 Capital Improvement Program – Presents a prioritized list of recommended improvement projects developed to address the existing and anticipated future capacity and condition deficiencies within the City’s collection system.
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The following documents are included as Appendices to this Sewer Master Plan Update report:
Appendix A – City of Compton Sewer Index Map (provided by City) Appendix B – ADS Environmental Services 2023 Flow Monitoring Report Appendix C – Pipeline Condition Assessment Data and Map Appendix D – Recommended CIP Project Cost Estimate Details
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2 Existing System Description
The following section summarizes existing features of the City’s sewer collection system. Existing facilities include gravity pipelines, inverted siphons, diversion manholes, and outfalls into the LACSD trunk sewer system.
At the time of writing this Sewer Master Plan Update, information related to the City’s existing collection system was not available in a digital format such as a GIS (Geographic Information System) database. Typically, a digitized record of the City’s sewer system enables staff to efficiently identify, update, and summarize information related to the physical characteristics and hydraulic performance of the system. As described in Section 7 of this report, it is recommended that City staff convert the field data collected from future phased, multi-year survey programs to GIS files and develop a centralized digital database of the City’s sewer system.
The information presented in the following section is primarily based on the 2008 Master Sewer Study, supplemented with additional material provided by City staff and field data collected during the manhole survey completed in 2023.
As the City continues to collect information regarding its existing collection system, the following section should be revised concurrently in preparation for future master plan updates.
2.1 Gravity Pipelines
Per the 2008 Master Sewer Study, the City’s existing sewer collection system includes approximately 147 miles of gravity pipeline, with diameters ranging from 4- to 24-inch, as summarized in Table 2.1. A majority (90%) of the collection network is 8-inch or smaller in diameter.
The 2008 Master Sewer Study did not include quantitative (i.e., length) information regarding the material or age of pipelines within the City’s collection system. Most of the City’s existing system was constructed between 1940 and 1959; therefore, an undefined majority of the system is at least 65 years old.
A qualitative review of the CCTV data provided by City staff for condition assessment of the existing system indicated that most pipelines are of vitrified clay pipe (VCP) material.
Appendix A presents an index map of the City’s collection system as provided by staff. The static index map is the only known comprehensive graphical summary of the City’s collection system. However, based on the field survey data collected in 2023 as part of this Sewer Master Plan Update, it was determined that the index map is not a wholly accurate representation of the City’s current collection network. Any discrepancy detected between the index map and other available data is noted in subsequent sections of this report.
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Table 2.1 Gravity Pipeline Summary by Diameter1
Diameter (in) Length of Pipe (ft) % of Total System
4 577 0.1
6 1,245 1.1
8 688,057 88.6
10 26,340 3.4
12 25,502 3.3
15 19,520 2.5
18 5,459 0.7
21 1,446 0.2
24 8,442 0.2
Total 776,600 100%
Notes:
1 Source: “Existing System” section of 2008 City of Compton Master Sewer Study, dated April 23, 2008.
2.2 Inverted Siphons
According to maintenance staff, the City’s existing collection system includes at least one City-owned inverted siphon as summarized in Table 2.2.
An inverted siphon is a pipeline that dips or sags to cross under an existing storm channel, body of water (e.g., stream or creek), utilities, or other overlying structure. Inverted siphons are designed to operate below the hydraulic grade line and thus should always flow full (i.e., under pressure).
Inverted siphons can be classified as single or double barrel. A double barrel siphon is composed of two (2) parallel pipelines, usually of identical diameter. In a double barrel siphon, one pipeline serves as the primary conveyance line while the second pipeline functions as an alternate, to be used in case the first is defective or taken out of service.
The following table is not a comprehensive summary of all inverted siphons owned and operated by the City.
Additional inverted siphons may be identified during future field surveys of the City’s sewer system and should be thoroughly documented by City staff.
In the absence of other collection system data, Figure 2.1 depicts the approximate location of the siphon in W Palmer St on the existing system index map.
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Table 2.2 Inverted Siphon Summary
Sipho
n ID
Model
Conduit
ID(s) Location
US / DS
Manhole ID 1 Structure
Crossing Barrel Diameter (in)
S-01 N/A2 W Palmer St, west of N
Wilmington Ave
3-3-063 /
3-3-064
Storm
channel
Unknow
n 8
Notes:
1 US = Upstream / DS = Downstream. Manhole IDs are per sewer index map provided by City staff. 2 This inverted siphon was not surveyed in 2023 and therefore not included in Phase I of the City’s new hydraulic sewer model.
Figure 2.1 Inverted Siphon at W Palmer St & N Wilmington Ave
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2.3 Diversion Manholes
Diversion manholes are manholes that convey sewer flow through two or more outlets oriented in different directions.
Often, stoplogs are used to intentionally block off at least one outlet and maneuver flow in a preferred downstream direction. In some cases, a weir is placed at the upstream invert of the secondary (i.e., overflow) pipe to promote flow through the primary (i.e., main) pipe. During periods of unusually elevated flow in the collection system, such as a significant wet weather event, water may rise over the top of the weir and travel through the overflow pipe to alleviate potential capacity concerns in the main pipe.
The accurate representation of flow through diversion manholes is critical during evaluation of the City’s available capacity. Five (5) diversion manholes were identified after review of the City’s sewer index map. However, field survey of the 5 manholes indicate they are not currently configured as diversion manholes. In fact, no diversion manholes were identified during the field survey completed as part of this Sewer Master Plan Update.
The City’s available sewer map, included in Appendix A, indicated a number of diversion manholes. Five of these diversion manholes were surveyed and were all found to be standard (i.e., single outlet) manholes in the field. Table 2.3 presents the findings of this field investigation. There are very likely active diversion manholes within the City’s sewer system. As part of this sewer master plan, field surveys are recommended to identify and confirm the locations of diversion manholes in the City’s collection system.
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Table 2.3 Field Survey Results of Potential Diversion Manholes (per City’s Sewer Index Map) Manhole ID 1 Location
Main Invert
Elevation (ft)
Main Pipe
Diameter (in) &
Cardinal Direction 2023 Survey Notes
5-3-005 W Walnut St & S Wilmington Ave 88.38 18-inch; East This manhole is not a diversion manhole. Two 15-inch inlet pipes from the south and west enter the manhole and converge into a single outlet pipe heading east.
3-5-033 W Raymond St, approximately 120
ft east of S Dwight Ave 82.87 12-inch; East
This manhole is not a diversion manhole. Two 12-inch inlet pipes from the south and west enter the manhole and converge into a single outlet pipe heading east.
3-3-131 W Compton Blvd & N Oleander Ave 62.83 18-inch; Southeast This manhole is not a diversion manhole. Three inlet pipes from the southwest, west, and northwest enter the manhole and converge into a single outlet pipe heading southeast.
3-3-158 W Almond St & S Oleander Ave 61.65 12-inch; West This manhole is not a diversion manhole. One 12-inch inlet pipe from the north enters the manhole and exits via a single outlet pipe heading west.
3-3-022 W Poplar St & N Culver Ave 64.09 8-inch; North
This manhole is not a diversion manhole. Two 8-inch inlet pipes from the south and west enter the manhole and converge into a single outlet pipe heading north.
Notes:
1 Manhole IDs are per sewer index map provided by City staff.
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2.4 Lift Stations and Force Mains
The City’s existing sewer collection system is an entirely gravity system; the City does not own or operate any lift stations or force mains.
2.5 LACSD Outfalls
The City does not own or operate any wastewater or sewage treatment facilities. According to the 2008 Master Sewer Study, the City’s collection system connects to the LACSD trunk system via 101 individual outfalls. All sewer flows generated within the City are conveyed to LACSD’s A.K. Warren Water Resource Facility (formerly known as the Joint Water Pollution Control Plant) in the City of Carson for treatment before ultimately discharging into the Pacific Ocean approximately two miles offshore.
2.6 Land Use
The following Table 2.4 summarizes the distribution of various land use types within the City, according to the City’s Draft 2030 General Plan dated January 2011.
At the time of writing this Sewer Master Plan Update, the City is preparing a 2045 General Plan intended to succeed the 2010 General Plan, adopted in 1991. In the intervening years, the City completed, but did not formally adopt, a Draft 2030 General Plan. The Draft 2030 General Plan was the primary reference used to compile existing land use data for this Sewer Master Plan Update, as it is intended to address the City’s development needs through 2030.
Figure 2.2 depicts the existing distribution of land use types within the City, based on information presented in the Draft 2030 General Plan.
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Table 2.4 Land Use Summary
Land Use Type Land Use Description Area (Ac) % of Total City Area Single-Family Residential Single-family residential uses 2,242 34.4 Low Density Multifamily Residential Duplex units or smaller multifamily uses
334 5.1
Medium Density Multifamily Residential Multifamily development 157 2.4 General Commercial Commercial centers and strip
commercial
425 6.5
Industrial Office, commercial, and light
industrial campuses.
Manufacturing, industrial, and
warehousing.
1,066 16.5
Public/Institutional Schools, City facilities, and
government facilities
668 10.3
Open Space/Vacant Land Parks, easements, and vacant
properties
276 4.2
Transportation Railroads and roads 1,346 20.7
Total 6,514 100.0
Notes:
1 Source: Table 2-1 of the Draft 2030 City of Compton General Plan Land Use Element.
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Figure 2.2 Distribution of Land Use Types (Source: Draft 2030 City of Compton General Plan Land Use Element)
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3 Existing and Future Dry Weather Flows
The following section summarizes the existing and anticipated future dry weather flows generated within the City’s service area and conveyed by the collection system. Existing (2023) partial dry weather flow was estimated using flow monitoring data collected in Summer 2023. Near-term (2030) and Ultimate (2045) dry weather flows were determined using population growth projections and planned development data provided by City staff.
Unit sewer flow generation factors were developed for major land use types. Whenever appropriate, flow monitoring data from 2023 was used to develop the unit generation factors. Statewide and local agency water use standards served as a secondary reference. The unit generation factors summarized in the following section can be used to estimate the sewer flows from proposed developments or other changes in land use type.
3.1 Population Summary
The following describes the City’s current population as well as anticipated population growth through the planning horizon covered by this Sewer Master Plan Update.
3.1.1 Existing Population
According to the City’s 2021-2029 Draft Housing Element Update, completed in December 2023, the population of the City was 98,447 in 2020.
Between 2010 and 2020, the City’s population increased by only 2% compared to a historical growth rate of 3% during each of the preceding two decades (1990-2000 and 2000-2010).
3.1.2 Projected Population
The 2021-2029 Draft Housing Element Update (Housing Element) was used to estimate population growth within the City and used to develop the future flow scenarios. As summarized in Table 3.1, the total population of the City is projected to increase to 103,100 by 2045. Therefore, the City is approximately 95% built-out in 2024.
The Regional Housing Needs Allocation (RHNA) process is part of a multi-step housing planning process implemented by the state of California designed to assist local governments in adequately meeting the housing needs of their communities. The process begins with the California Department of Housing and Community Development (HCD) determining the regional housing need for each region’s planning body or Council of Governments (COG). The Southern California Association of Governments (SCAG) is a COG that encompasses six counties and 191 cities, including the City of Compton.
Following HCD’s determination of southern California’s housing needs, SCAG is responsible for allocating the housing needs amongst its jurisdictions on a “fair share” basis. SCAG has determined that Compton must identify adequate available vacant and non-vacant sites for 1,004 new dwelling units by 2029.
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If all 1,004 dwelling units are constructed and occupied by 2029, with an average household size of 2 persons per unit, the City’s population is anticipated to reach 100,455 in 2030. Therefore, assuming no additional population increase beyond implementation of RHNA and no loss, the City’s population growth rate will be approximately 2% between 2020 and 2030.
Overall, the City’s population is projected to increase 4.6% over a 25-year period, from 98,477 in 2020 to 103,100 in 2045.
Table 3.1 Existing and Projected Population Estimates Year Population Growth Percent Change
2020 98,4471 - -
2030 100,455 2,008 2.0
2045 103,1002 2,645 2.6
Notes:
1 Source: Table 2-1 of the City of Compton 2021-2029 Draft Housing Element Update (Housing Element)
2 Source: Table 2-3 of the Housing Element
3.2 Existing Dry Weather Flows
No historical (prior to Summer 2023) flow monitoring data was available for review for this Sewer Master Plan Update.
In the absence of measured flow data, the City’s existing land use data and unit generation factors can be used to estimate existing dry weather flows. However, the City does not maintain its land use data in a digital file format, so a straightforward computation of the existing dry weather flows was not feasible.
Therefore, for this Sewer Master Plan Update, partial existing dry weather flows within the City’s collection system were determined using 2023 flow monitoring data. The locations of the 2023 flow monitors and their measured sewersheds are described in Section 4. Table 3.2 summarizes the existing average and peak dry weather flows measured by each flow monitor. The table is not a comprehensive summary of all dry weather flows in the City’s sewer system. A more comprehensive understanding of the system’s existing capacity will emerge as the City continues to develop its hydraulic sewer model and collect additional flow monitoring data.
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Table 3.2 Measured Dry Weather Flows at 2023 Flow Monitored Sewersheds Only
Flow Monitor ID
Existing ADWF 1
(MGD)
Existing PDWF 1
(MGD)
FM 01 0.13 0.18
FM 02 0.20 0.30
FM 03 0.43 0.60
FM 04 0.42 0.55
FM 052 - -
FM 06 0.37 0.50
Partial System Total Flow
(MGD) 1.55 2.13
Notes:
1 ADWF = Average Dry Weather Flow; PDWF = Peak Dry Weather Flow 2 Zero flow was recorded at FM 05. The configuration of the sewer system in the field likely differed from what was shown on the existing system index map. See Section 4.2 for details.
3.3 Future Dry Weather Flows
Two future dry weather flow scenarios, Near-Term (2030) and Ultimate (2045), were developed as part of this Sewer Master Plan Update. The Near-Term scenario is based on planned development data provided by City staff, including dwelling unit increases and land use changes, for projects that are anticipated to finish construction by 2030. The City’s RHNA of 1,004 dwelling units is included in the Near-Term scenario.
The Ultimate scenario estimates an increase in sewer flows throughout the collection system using the City’s projected population growth rate described in Section 3.1. The following sections describe the methods used to develop the Near-Term and Ultimate dry weather flow scenarios.
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3.3.1 Near-Term (2030) Developments
According to the City’s Housing Element, seven (7) developments have been approved or proposed for construction by 2030. As detailed in Table 3.3, all 7 projects are residential and will contribute 563 units toward the City’s overall RHNA of 1,004 dwelling units. Figure 3.1 highlights the locations of the proposed developments.
Of the 7 projects, only the Compton Innovation Center by KBK Enterprises lies within the extents of Phase I of the City’s new sewer model developed for this Sewer Master Plan Update and is therefore included in the modeled Near- Term (2030) scenario. For reference, the average dry weather flow of each planned development is presented in Table
3.3, estimated using the unit generation factors summarized in Section 3.3.1.1. As the City expands its sewer model, the estimated dry weather flows from each planned development should be added to the Near-Term scenario to more accurately represent future projected flows. All 7 proposed near-term developments are located north of Alondra Blvd, with 5 located west of N Alameda St and 2 east of N Alameda St.
Pursuant to state law, accessory dwelling units (ADUs) can be counted toward the City’s RHNA requirement. Between 2018 and 2022, 104 ADUs were constructed within the City, or an average of 20 new ADUs per year. As a conservative measure, the Housing Element estimated that 130 new ADUs will be constructed between 2021 and 2029.
The anticipated 130 new ADUs are included in the outstanding 441 dwelling units that, when added to the 563 units from the proposed near-term developments, comprise the City’s total RHNA requirement of 1,004 housing units.
Based on the high densification of the proposed developments and limited availability of vacant land within the City, it was assumed that the 311 non-ADU housing units will be multifamily or apartment-style residential units.
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Table 3.3 Proposed Near-Term (2030) Developments and Estimated ADWF1,2 Project Name /
Developer Existing Site Address Status
Residential
Land Use Type
Proposed
Dwelling
Units
Estimated
ADWF (MGD)
Potential Connection
Point / Modeled Manhole
ID
1950 N Central Ave –
Olson Company
1950 N Central Ave Completed High Density
Residential
29 0.003 Water Way between W 134th
St and W 135th St
The Garvey – Landspire
Group
1434 W Compton Blvd City Council
Review
High Density
Residential
75 0.009 W Compton Blvd between S
Nestor Ave and S Tajauta
Ave
The Compton
Innovation Center –
KBK Enterprises2
501-601 E Compton
Blvd
Approved High Density
Residential
288 0.035 E Compton Blvd between N
Spring Ave and N Willow Ave
Manhole ID: 4-1-089
Unnamed
Development
1119 and 1121
Rosecrans Ave
Approved High Density
Residential
42 0.005 Rosecrans Ave at Sloan Ave
City Ventures – City of
Compton
930 W Compton Blvd Approved High Density
Residential
60 0.007 W Compton Blvd between S
Dwight Ave and S Kemp Ave
250 N Central Ave –
Olson Company
250 N Central Ave In Construction High Density
Residential
57 0.007 W Palmer St at N Albertson
Ave
Rosecrans/Kemp 845 Rosecrans Ave Approved High Density
Residential
12 0.001 Rosecrans Ave between N
Kemp Ave and N Wilmington
Ave
Total 563 0.068 -
Total Including RHNA Balance (130 ADUs and 311 Other High Density Residential Units) 1,004 0.121 - Notes:
1 ADWF = Average Dry Weather Flow
2 The Compton Innovation Center is the only Near-Term development that was included in the limits of Phase I of the hydraulic sewer model created for this Sewer Master Plan Update.
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Figure 3.1 Near-Term Development Locations
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3.3.1.1 Unit Sewer Flow Generation Factors
Table 3.4 summarizes the unit generation factors used to develop the projected Near-Term dry weather flows from planned developments. The generation factor for light industrial (i.e., logistics warehouse) was developed based on dry weather flow data collected by FM 01. General commercial, institutional, and open space unit generation factors are derived from planning criteria published by comparable agencies in southern California.
A City-specific unit generation factor for multifamily residential units could not be derived from the limited flow monitoring data collected in 2023. Instead, an indoor water use factor of 60 gallons per day per capita (gpcd) was assumed for sewer flow generation of multifamily residential units. The Department of Water Resources’ (DWR) recommended indoor water use factor for 2023 is 55 gpcd; therefore, a factor of 60 gpcd is a conservative assumption suitable for planning purposes. Assuming an average household size of 2 persons, the unit generation factor for multifamily residential dwelling units (DU) is equivalent to 120 gpd/DU.
While typically standalone structures, ADUs often have less square footage than traditional single-family homes and therefore can reasonably be assumed to house 2 persons each so that the multifamily residential unit generation factor also applies.
Lastly, the generation factor of 240 gpd/DU for single family residential dwelling units is based on an assumed household size of 4 persons (per census data) and indoor water use factor of 60 gpcd. The generation factors for multifamily and single-family residential units are consistent with those of similar agencies in Los Angeles and Orange County.
Table 3.4 Unit Sewer Flow Generation Factors by Land Use Type Unit Generation Factor
Land Use Type gpd/DU gpd/acre
Single-Family Residential1 240 -
Multifamily Residential1 120 -
General Commercial2 - 1,200
Light Industrial3 - 500
Public / Institutional2 - 1,200
Open Space / Recreation2 - 100
Notes:
1 Single-Family and Multifamily Residential factors are based on an indoor water use factor of 60 gpcd and 4 and 2 persons per household, respectively.
2 General Commercial, Public / Institutional, and Open Space / Recreation factors are per published planning criteria from similar agencies in southern California. 3 Light Industrial factor is per 2023 flow monitoring data collected for this Sewer Master Plan Update.
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Approximately 11.5% of the City’s existing sewer system was surveyed and included in Phase I of the hydraulic model for this Sewer Master Plan Update. To simplify the process for allocation of dry weather flows in the Near-Term scenario, it was assumed that 11.5% of the 130 projected ADUs (15 ADUs) and the 311 undefined (i.e., not already included in a proposed near-term development) RHNA multifamily housing units (36 units) will connect to areas of the system that are included in Phase I of the model. The following Table 3.5 compares the Near-Term dry weather flows included in Phase I of the model to the total flow that is anticipated following completion of the planned developments and overall RHNA requirement.
Table 3.5 Near-Term Dry Weather Flows – Phase I Model Only Near-Term Development Type Proposed Multifamily DUs
Estimated ADWF 1
(MGD)
Planned Development (From Table 3.3)1 288 0.035
ADUs2 15 0.002
Balance of RHNA Units2 36 0.004
Total 339 0.041
Notes:
1 ADWF = Average Dry Weather Flow
2 Only the Compton Innovation Center (288 DUs) is included in the geographical extents of Phase I of the hydraulic sewer model.
3 Based on the size of Phase I of the model relative to the overall sewer system, it was assumed that 11.5% of the 130 total projected ADUs and 311 remaining RHNA dwelling units will connect to the modeled collection network.
3.3.2 Ultimate (2045) Developments
At the time of writing this Sewer Master Plan Update, no additional developments beyond those already identified in the Near-Term (2030) scenario are anticipated within the City’s service area. In the absence of specific development information, the City’s projected population growth between 2030 and 2045 was used to calculate a system-wide multiplier representing the increase in sewer flow through the system by the Ultimate (2045) scenario.
As described in Section 3.1.2, the City’s population is anticipated to increase 2.6% from 100,455 in 2030 to 103,100 in 2045. Therefore, a system-wide multiplier of 1.026 was applied to the Near-Term dry weather flows to develop the Ultimate scenario.
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3.4 Modeled Existing and Future ADWF Summary
Table 3.6 summarizes the average dry weather flows (ADWF) included in each planning scenario of Phase I of the sewer model developed for this Sewer Master Plan Update. Not all dry weather flows within the City’s collection system could be measured or otherwise quantified in 2023. Furthermore, the modeled extents of the system were limited by the minimal availability of existing system information.
Table 3.6 Existing and Future ADWF – Phase I Model Only Model Scenario (Year)
Projected ADWF
Increase (MGD) Total ADWF (MGD)
Existing (2023) - 1.541
Near-Term (2030) 0.0412 1.58
Ultimate (2045) 0.0413 1.62
Notes:
1 Existing ADWF is the sum of all flows measured by the temporary flow monitors installed in Summer 2023 for this Sewer Master Plan Update and does not represent all flows within the City’s existing sewer system.
2 Projected net ADWF increase in Near-Term scenario is per Table 3.5. 3 Projected net ADWF increase in Ultimate scenario is equivalent to the total modeled (Phase I) Near-Term ADWF multiplied by a population growth factor of 1.026.
As the City continues to survey and model its existing sewer system, additional flow monitoring data should be collected and analyzed to better characterize total dry weather flows within the system and refine the unit generation factors presented in this section. The total ADWF of each planning scenario presented in Table 3.6 is therefore expected to increase and should be updated in anticipation of the City’s next master plan update.
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4 Sewer Model Development and
Calibration
The following section describes the initial existing sewer system survey used to create the sewer model and flow monitoring program conducted in 2023 as part of this Sewer Master Plan Update. The field survey data was used to construct Phase I of the City’s new AquaTwin Sewer model. Phase I of the model was calibrated to existing dry weather flows using the flow monitoring data collected in Summer 2023. Since the sewer model was developed within a GIS- based software program, the modeled elements can be exported to a GIS database for City staff to use as the basis of their new digitized asset management system.
4.1 Existing Manhole Survey
A typical sewer model generated using industry standard software, such as the AquaTwin Sewer program by Aquanuity selected by City staff, is based on an existing GIS database of the collection system. The typical GIS database includes invert elevations, pipeline diameters, lengths, and other relevant physical and hydraulic information.
Since the City does not maintain a GIS database or other digitized files of its existing sewer system, a field survey was conducted to obtain the current invert elevations of 100 representative manholes and their associated inlet and outlet pipe diameters. Manholes located upstream of the flow monitors described in Section 4.2 were selected to facilitate calibration of Phase I of the model to existing dry weather flows. Given the limited field survey scope and to maximize the modeled extents of each flow monitored sewershed, manholes at key intersections were selected for survey instead of 100 adjacent manholes. Manhole selection was based on review of the City’s sewer index map, which was assumed to be accurate in the absence of any other system data.
Invert elevations for those manholes between the surveyed intersections were interpolated using the field survey data.
Future, more comprehensive surveying efforts by the City will “fill in the gaps” with accurate invert elevations for the interpolated manholes and verify pipeline slopes and diameters throughout the collection network.
The existing manhole survey was completed over the course of several months in 2023 by a licensed surveying subcontractor and with the assistance of City maintenance staff. An additional abbreviated field survey was conducted in July 2024 to confirm the invert elevations of several key manholes prior to calibration of Phase I of the model. After the capacity analysis for this project was performed, Dudek had additional surveying performed in April 2025 on approximately 50 manholes to confirm two areas that were showing potential capacity restrictions in the initial capacity analysis. Due to the uncertainty of pipeline diameters and pipe configurations between key intersections, Dudek determined it was valuable to confirm exact data to confirm the capacity analysis results. As a result of the third April 2025 survey, one location was found to no longer show a capacity limitation in the hydraulic model, The locations of the surveyed manholes are depicted in Figure 4.1.
Comparison of the manhole survey data to the City’s sewer index map revealed several discrepancies in pipeline network configuration between the two information sources. Most notably, the City’s index map indicated that all connected gravity mains west of Manhole 4-5-013 at E Alondra Blvd and S Crane Ave flow into the pipeline whose flows are measured by FM 06 as shown in Figure 4.1. However, the survey data revealed that flows from most of the
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collection network west of Manhole 4-5-013 are not measured by FM 06 but instead likely turn south prior to Santa Fe Ave.
Therefore, certain surveyed areas of the City’s collection system were not included in Phase I of the sewer model since the dry weather flows generated within these areas were not measured by the 2023 flow monitors as previously assumed. Any manhole and connected gravity mains that were surveyed in 2023 but found to not lie within the measured sewersheds are represented as dashed blue lines in Figure 4.1.
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Figure 4.1 2023 Manhole Survey and Flow Monitor Locations
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4.2 Flow Monitoring Program
Sewer flow monitoring data is used to evaluate the current usage patterns and remaining capacity within an existing collection system. Critical for this Sewer Master Plan Update, flow monitoring data also serves as the basis for validation of model calibration to existing flow conditions. The resultant flow monitoring data should reflect the system’s general response to rainfall dependent inflow and infiltration (RDII) as well as typical dry weather flow patterns.
As stated in previous sections, the 2008 Master Sewer Study was not based on field measured sewer flows. Instead, the 2008 Study employed a highly conservative approach in which the maximum potable water usage was used to develop the existing dry weather scenario. In reality, the sewer flows generated by a community will always be less than the corresponding water demand due to consumption, surface runoff, and other factors.
For the Sewer Master Plan Update, a temporary sewer flow monitoring program was implemented, featuring six (6) strategically-placed flow monitors. These locations were selected based on the City's index map of the collection system to accurately measure flows within designated sewersheds. A sewershed is defined as an area where all sewer flows converge to a single point, which can be measured using a flow monitoring device. With the approval of City staff, ADS Environmental Services (ADS) was contracted to oversee the installation, data analysis, and removal of the six flow monitors. Each of these six locations was situated upstream of a LACSD outfall, where the City’s collection system discharges into the regional collection system.
The flow monitoring period extended from August 12 through September 13, 2023, as summarized in the report prepared by ADS and included in Appendix B. The flow monitor locations are depicted in Figure 4.1.
4.2.1 Flow Monitoring Results
ADS logged flow data at six locations within the City’s collection system from August 12, through September 13, 2023, for a total of four weeks.
A review of the flow monitoring data generated the following conclusions, later applied during the dry weather model calibration described in Section 4.4.
FM 03 recorded continuous backwater conditions starting on August 13, 2023, and persisting throughout the flow monitoring period. Surcharging was observed from August 14 to August 24, until downstream cleaning of the LACSD regional pipelines was completed. Afterward, FM 03 continued to experience backwater conditions and occasional surcharging. Data collected after midday on August 13 are considered unreliable due to the severe backwater conditions. These conditions were assumed to be caused by the LACSD siphon located downstream of the LACSD outfall, upstream of which FM 03 was located. This issue was unknown at the time of flow monitor site selection.
FM 05 measured effectively zero flow during the monitoring period, indicating the City’s index map does not accurately depict the upstream sewer alignment used to select the sewershed for monitoring. This sewershed was therefore not modeled nor calibrated to existing sewer flows in Phase I of the sewer model.
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The wet weather event that occurred on August 20, 2023, is equivalent to approximately a one-year frequency storm and was the only wet weather event recorded during the monitoring period.
4.2.2 Dry Weather Time Patterns
The flow monitoring data was used to develop a unique dry weather hourly time pattern for each measured sewershed.
An hourly time pattern is a series of twenty-four (24) multipliers, one for each hour of a day, that is applied to a given average dry weather flow to approximate the observed daily variations in sewer flow within a sewershed. The multiplier assigned to each hour is also known as a peaking factor. Hourly time patterns are created by normalizing measured sewer flows over a 24-hour period, such that the average of all peaking factors is 1.0.
The highest peaking factor in an hourly time pattern represents the peak dry weather flow measured at the outlet pipe of its associated sewershed, as summarized by the following formula:
Peak Dry Weather Flow (PDWF) = Maximum Peaking Factor (PF) x Average Dry Weather Flow (ADWF) Of the five viable flow monitors, four were located downstream of sewersheds containing predominantly residential parcels. In general, residential sewersheds experience higher flows during the weekends than weekdays. Therefore, the residential sewersheds were calibrated to weekend dry weather flow data.
Consistent with a typical resident’s daily routine, a residential time pattern often exhibits two peaks that occur in the late morning and early evening. In general, smaller sewersheds will experience a more significant peaking response (i.e., higher maximum peaking factor) compared to larger sewersheds due to the concentrated effect of fewer dwelling units. The average diurnal maximum peaking factor of the four residential sewersheds is 1.35.
FM 01 measured flows generated by an area of the City dominated by commercial and light industrial land use types.
Compared to residential time patterns, a commercial pattern does not demonstrate distinct peaks but rather a sustained level of flow during typical working hours.
Predictably, a sewershed containing primarily commercial or industrial customers experiences higher flows during the weekdays than weekends. To establish a conservative base flow, the sewershed measured by FM 01 was calibrated to weekday dry weather flow data. The diurnal maximum peaking factor of this sewershed is 1.50.
Figure 4.2 depicts the dry weather hourly time patterns of the five flow monitored sewersheds in the City’s existing system.
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Figure 4.2 Dry Weather Hourly Time Patterns
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4.3 Sewer Model Development
The principal tool used to analyze the capacity of a sewer collection system is a hydraulic model of the system that can simulate dry and wet weather flow conditions. As part of this Sewer Master Plan Update, the initial phase or Phase I of a new hydraulic model was developed within Aquanuity’s AquaTwin Sewer program using current survey and flow monitoring data.
4.3.1 Model Network Generation
Since the City does not maintain a GIS database of its sewer system, the following data sources were referenced during development of the model network:
Existing City sewer system index map with manhole ID and flow arrow labels in PDF format Existing City sewer system index map with only pipeline diameter labels in PDF format Sewer maps associated with the City’s “Sewer Management Program” dated December 1987 and prepared by CH2MHill. These maps generally align with the index maps listed above but are not stamped as as-built drawings and therefore should not be considered as a definitive representation of the City’s existing system. CCTV condition assessment data
Invert elevations, pipeline diameters, and flow directions for 100 manholes as selected for the 2023 field survey of the City’s existing system
Google Earth satellite imagery and Street View technology The model creation process encountered several significant challenges, including the absence of any sewer system data in GIS file format and observed inconsistencies between contemporary field survey data and the City’s sewer index map. A field survey of 100 manholes was conducted to collect accurate invert and pipeline information and subsequent creation of Phase I of a new hydraulic sewer model. As described in Section 7, the City should include provisions for expanding the sewer model using additional survey data in future fiscal year budgets.
Phase I of the model was envisioned to include six sewersheds whose extents were approximated using the City’s existing sewer system index map. 100 manholes across the six sewersheds were selected for field survey, with particular emphasis on manholes located at major street intersections, flow diversion points, or changes in pipeline diameter based on the index map. Of the six sewersheds, FM 05 did not measure any flow during the designated monitoring period, suggesting that the upstream pipe network configuration has changed significantly since publication of the City’s index map.
Generally, when the diameter of a surveyed pipeline was noted to be greater than the diameter shown on the index map, it was assumed that an improvement project had been completed in the field but not incorporated into the index map. In such cases, the surveyed pipeline diameter was included in Phase I of the sewer model if it made sense in the context of the smaller pipelines (e.g. smaller diameter pipes flow downstream to larger diameter pipes).
Additionally, human error may have occurred during the field survey, especially at locations where numerous sewer manholes share the same street intersection (e.g., Compton Blvd and Pearl Ave). Survey data collected at these manholes are of “low-confidence” but still included as inactive elements in Phase I of the sewer model. For any other
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observed discrepancies, all data sources summarized above were thoroughly reviewed and best engineering judgment applied to determine pipeline diameters and connectivity.
4.3.2 Existing Dry Weather Flows Allocation
Average measured weekend dry weather flows were allocated evenly across all modeled manholes within the primarily residential sewersheds of FM 02, FM 03, FM 04, and FM 06. For FM 03, the average flow from only a single day (August 12, 2023) was used due to the backwater effects observed during most of the flow monitoring period.
The average measured weekday dry weather flow was allocated evenly across all modeled manholes within the primarily commercial and light industrial sewershed of FM 01. In addition, the City provided daily water consumption rates for the top twenty water users within the City of Compton Water Department’s service area. The majority of the top 20 users were industrial and commercial land use types. Four of the top 20 users are contained within the limits of Phase I of the sewer model and summarized in Table 4.1 below.
Table 4.1 Top Water Users in Phase I Sewer Model
Service Address User Type
Water
Consumption
(GPD)
Equivalent
ADWF (MGD) Sewershed
609 W Compton Blvd Laundry
(Commercial) 919 0.0009 FM 04
509 W Compton Blvd Laundry
(Commercial) 644 0.0006 FM 04
608 E Compton Blvd Pacific Bell
(Industrial) 593 0.0006 FM 06
215 N Mayo Ave Multi-Family
Residential 527 0.0005 FM 06
As a conservative measure, and due to user type, it was assumed that the average daily water consumption is equivalent to the sewer flows generated by each top user under dry weather conditions. As noted previously, in practice the sewer flow generation rate is always less than the corresponding water demand factor. However, the water consumption of the top users is sufficiently minor compared to the overall measured flows within each sewershed that a sewer reduction factor was deemed unnecessary. Following the addition of the top water users to Phase I of the model, the dry weather flows assigned to each modeled manhole in the affected sewersheds were adjusted to better align modeled calibration results to measured flows.
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4.3.3 Existing Wet Weather Flows Allocation
As summarized in Section 4.2.1, the most significant wet weather event recorded in Summer 2023 was a one-year storm. In the context of a Sewer Master Plan Update, which typically occurs every ten years or more, flow monitoring data collected during a one-year storm is not considered statistically significant to warrant creation and calibration of a wet weather scenario. Nevertheless, the following section summarizes the typical methodology used to calibrate a sewer model to design storm data for the benefit and understanding of City staff.
During and following a wet weather event, flows through a wastewater collection system increase due to the dual phenomena of inflow and infiltration (I&I). Typically, inflow occurs at the onset of a wet weather event, as rainwater enters a collection system directly via illicit storm drain connections or unsealed manhole covers. The impact of inflow is reflected as a sudden increase in flow within the collection system. In contrast, infiltration is the process by which water from saturated soils enters the system through pipeline defects such as fractures, breaks, or improperly fitted lateral connections. A persistently high groundwater table may result in low levels of system infiltration throughout the year regardless of wet weather events.
Model parameters are developed and adjusted to reproduce the observed characteristics of rainfall-derived inflow and infiltration (RDII) during the selected design storm. These parameters are specific to each measured sewershed and contained within a model element known as a RDII hydrograph. Each RDII hydrograph is comprised of three-unit hydrographs, representing the short-term, intermediate-term, and long-term response of a sewershed to RDII as illustrated in Figure 4.3.
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Figure 4.3 Model RDII Hydrograph
Each of the three-unit hydrographs is defined by the following three variables:
R – Percentage of rainfall volume that enters the sewer collection system T – Time from start of rainfall to the peak of the hydrograph, in hours K – Ratio of time to recession of the unit hydrograph to the time of peak rainfall Instead of calibrating Phase I of the City’s sewer model to a statistically insignificant (i.e., one-year) storm, an artificial diurnal pattern was developed to replicate the effects of a probable wet weather event. The methodology used to develop a simulated wet weather scenario for capacity analysis of the City’s modeled sewer system is summarized in Section 5.4.
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4.4 Dry Weather Model Calibration
Phase I of the City’s sewer model was calibrated to existing (2023) dry weather flows by comparing the modeled to measured flows at each flow monitor location over a 24-hour period and, if necessary, adjusting each sewershed’s diurnal time pattern until both modeled average and peak dry weather flows were within 10% difference of their measured counterparts.
Table 4.2 compares the modeled average and peak dry weather flows of each viable sewershed (i.e., excluding FM 05) to their corresponding measured values. All sewersheds were calibrated to less than 1% difference between their measured and modeled average and peak dry weather flows.
Figure 4.4 through 4.7 depicts the modeled and measured diurnal dry weather flow pattern for each sewershed, excluding FM 05.
Table 4.2 Model Calibration Results – Existing (2023) Dry Weather Flow Average Dry Weather Flow Peak Dry Weather FlowSewershed/ Flow
Monitor ID 1
Measured
(MGD)
Modeled
(MGD) % Difference
Measured
(MGD)
Modeled
(MGD)
%
Difference
FM 01 0.125 0.125 0.4% 0.187 0.182 2.5%
FM 02 0.204 0.203 0.4% 0.298 0.296 0.5%
FM 03 0.428 0.428 0.0% 0.602 0.601 0.2%
FM 04 0.417 0.419 0.4% 0.541 0.544 0.4%
FM 06 0.368 0.370 0.5% 0.500 0.495 0.9%
Totals 1.542 1.545 0.2% 2.128 2.118 0.5%
Note:
1 FM 05 was excluded due to measuring zero flow during the monitoring period. Refer to Section 4.2.1 for additional detail.
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Figure 4.4 FM 01 Modeled vs Measured Flow
Figure 4.5 FM 02 Modeled vs Measured Flow
0 1
2 3
4 5
6 7
8 9
10 11
12 13
14 15
16 17
18 19
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24 -
20 40
60 80
100
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140
Modeled Measured
Flow (gpm)
Hour
-
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250
Modeled Measured
Flow (gpm)
Hour
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Figure 4.6 FM 03 Modeled vs Measured Flow
Figure 4.7 FM 04 Modeled vs Measured Flow
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 0 50
100
150
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450
Modeled Measured
Flow (gpm)
Hour
-
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Measured Modeled
Flow (gpm)
Hour
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Figure 4.8 FM 06 Modeled vs Measured Flow
-
1 2
3 4
5 6
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23 24
0 50
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Measured Modeled
Flow (gpm)
Hour
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5 Collection System Capacity Analysis
The following section summarizes the results of the capacity analyses performed on Phase I of the City’s existing sewer system model under Existing, Near-Term (2030), and Ultimate (2045) dry and simulated wet weather flow conditions.
Phase I of the newly created and calibrated sewer model was used to analyze each flow scenario. Model results were compared to criteria developed for this Sewer Master Plan Update and used to identify pipelines with potential capacity deficiencies.
In addition, this section summarizes recommended pipeline design criteria for the City to reference when designing new facilities intended to improve or expand the existing system.
5.1 Pipeline Design Criteria
Sewer design criteria are guidelines for the City to follow when planning or designing improvements to the existing system. Such improvements may be intended to address existing system deficiencies or accommodate future projected flows from planned developments, like those described in Section 3. The 2008 Master Sewer Study did not provide any sewer design criteria for the City to adopt. Historically, the City has not formally published any criteria for the design of gravity collection mains or other sewer facilities.
The sewer design criteria presented in Table 5.1 were developed after consultations with City staff and a review of design criteria published by neighboring agencies in southern California. Design criteria for force mains and lift stations are not included as the City does not own or operate any sewage pumping facilities.
Due to a lack of wet weather flow data and corresponding RDII rates collected in the City’s service area for this Sewer Master Plan Update, the following design criteria were developed based on peak dry weather flows (PDWF). An allowance for potential wet weather flows is accounted for through a conservative recommended depth of flow relative to the new gravity main diameters.
Table 5.1 Sewer Design Criteria – Pipelines
Minimum Pipeline Diameter 8-inch
Minimum Velocity at Peak Dry Weather Flow (PDWF) 2.0 fps Minimum Velocity at PDWF for Inverted Siphons1 3.5 fpsGeneral Criteria Manning’s Roughness Coefficient “n” 0.013
Diameter < 12-inch 0.50
Diameter = 12-inch 0.67Maximum d/D 2 at PDWF
Diameter > 12-inch 0.75
Notes:
1 All inverted siphons shall have a minimum of two barrels such that one barrel can be taken out of service for maintenance. The design minimum daily flushing velocity for inverted siphons may be as low as 3.0 fps. 2 d/D is the ratio of the depth of sewer flow (“d”) in the gravity main to the pipeline diameter (“D”).
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The capacity within a sewer gravity main is a function of pipeline diameter, roughness, allowable flow depth, and slope as described by Manning’s Equation:
𝑸 = 𝟏.𝟒𝟖𝟔 × 𝑨 × 𝑹𝟐/𝟑× 𝑺𝟏/𝟐× 𝒏 ‒𝟏
Where:
= Volumetric flow rate (cubic feet per second)𝑄
= Cross-section area of flow (square feet)𝐴
= Hydraulic radius (feet)𝑅
= Pipe slope (feet per feet)𝑆
= Manning’s roughness coefficient𝑛
Where:
𝑅 = 𝐴/𝑃
= Wetted perimeter (feet)𝑃
The maximum depth over diameter ratio (d/D) of a gravity main can be derived using Manning’s Equation and is the primary value used to evaluate the available capacity of an existing or proposed gravity main.
In general, sewer gravity mains are not intended to flow full (i.e., maximum d/D of 1.0), as unoccupied space at the top of the pipeline is required to accommodate sewer gases in addition to a measure of RDII entering the system during a typical wet weather event. In a standard collection system, gravity mains that are constantly flowing at or near full capacity may be at increased risk of sanitary sewer spills during periods of peak flow or a significant wet weather event.
The Manning’s roughness coefficient (“n”) of pipelines varies with material and age. A roughness coefficient of 0.013 is commonly used when evaluating existing pipeline capacity and assessing future system needs. Studies have indicated that a roughness coefficient of 0.013 is a conservative estimate of the average friction factor of typical gravity mains over their useful lifespan.
5.2 Pipeline Deficiency Criteria
The recommended sewer design criteria presented in Section 5.1 were developed with consideration for a degree of unoccupied space within the pipeline to accommodate increased flows through the system during a wet weather or other elevated flow event. In addition to these design criteria, agencies often employ separate deficiency criteria to determine when an existing pipeline should be replaced with a larger diameter (i.e., upsized) line to mitigate the risk of spills or other service interruptions.
Deficiency criteria are also referred to as “trigger” criteria because they result in a recommendation for a pipeline improvement project. For example, the 2008 Master Sewer Study allowed for a maximum d/D of 0.50 under any flow condition regardless of pipeline diameter before triggering a capacity improvement project.
Table 5.2 summarizes the pipeline deficiency criteria used to evaluate the capacity of existing gravity sewer mains in this Sewer Master Plan Update. Compared to the 2008 Master Sewer Study, the criteria used to evaluate the City’s
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existing collection system under PDWF conditions is less conservative but more realistic, as they account for the variation in pipeline diameters throughout a collection system. For example, an 18-inch trunk main flowing half full (i.e., maximum d/D of 0.50) has significantly more remaining available capacity than an 8-inch main also flowing half full. In addition, the complexity and cost of pipeline replacement projects typically increases as the diameter increases.
When determining the order of completion of recommended improvement projects, any potential capacity deficiencies identified under PDWF conditions are prioritized over those anticipated under PWWF.
Table 5.2. Sewer Deficiency Criteria – Pipelines
Diameter < 24-inch 0.75Maximum d/D at PDWF Diameter ≥ 24-inch 1.0 Maximum d/D at PWWF All Diameters 1.0
5.3 Dry Weather Capacity Analysis
The following sections present the results of the capacity analyses performed on Phase I of the City’s sewer model under Existing, Near-Term (2030), and Ultimate (2045) PDWF conditions.
5.3.1 Existing (2023) Dry Weather Flow
The capacity of the City’s modeled collection system was analyzed under Existing (2023) PDWF conditions. Maximum d/D for modeled City-owned gravity pipelines as predicted by the model over a representative 24-hour dry weather period were compared to the deficiency criteria summarized in Section 5.2.
As depicted in Figure 5.1, no City-owned gravity pipelines are anticipated to exceed the deficiency criteria under Existing PDWF conditions.
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Figure 5.1 Existing (2023) Peak Dry Weather Flow Capacity Analysis Results – Maximum d/D of Modeled Pipelines
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5.3.2 Near-Term (2030) Dry Weather Flow
The capacity of the City’s modeled collection system was analyzed under Near-Term (2030) PDWF conditions.
Maximum d/D for modeled City-owned gravity pipelines as predicted by the model over a representative 24-hour dry weather period were compared to the deficiency criteria summarized in Section 5.2.
As depicted in Figure 5.2, no modeled City gravity mains are anticipated to exceed the deficiency criteria under Near- Term PDWF conditions. Given the minimal increase in dry weather flow (339 multifamily dwelling units or 0.041 MGD), no material difference in capacity results was anticipated between the Existing and Near-Term scenarios.
5.3.3 Ultimate (2045) Dry Weather Flow
The capacity of the City’s modeled collection system was analyzed under Ultimate (2045) PDWF conditions. Maximum d/D for modeled City-owned gravity pipelines as predicted by the model over a representative 24-hour dry weather period were compared to the deficiency criteria summarized in Section 5.2.
As depicted in Figure 5.3, like the preceding scenarios no City gravity mains are anticipated to exceed the deficiency criteria under Ultimate PDWF conditions. Due to the mostly built out nature of the City, the modeled increase in dry weather flow between the Existing and Ultimate scenarios is only anticipated to be 0.082 MGD or 5%, a minor change that is unlikely to impact any pipeline capacity results that are not already on the verge of exceeding deficiency criteria.
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Figure 5.2 Near-Term (2030) Peak Dry Weather Flow Capacity Analysis Results – Maximum d/D of Modeled Pipelines
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Figure 5.3 Ultimate (2045) Peak Dry Weather Flow Capacity Analysis Results – Maximum d/D of Modeled Pipelines
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5.4 Wet Weather Capacity Analysis
The following sections present the results of the capacity analyses performed on Phase I of the City’s sewer model under Existing, Near-Term (2030), and Ultimate (2045) simulated PWWF conditions.
5.4.1 Existing (2023) Wet Weather Flow
No historical wet weather flow monitoring data was available to use in development of an existing model wet weather flow scenario based on observed RDII factors. Instead, the following equations were used to calculate average and peak wet weather flows within each sewershed in Phase I of the City’s sewer model, respectively:
𝐴𝑊𝑊𝐹 = 1.2 𝑥 𝐴𝐷𝑊𝐹
𝑃𝑊𝑊𝐹 = 3.0 𝑥 𝑃𝐷𝑊𝐹
In other words, the simulated existing wet weather flow scenario assumes that over a 24-hour period the average wet weather flow is 20% greater than the average flow over an equivalent dry weather period to account for RDII that may enter the system. Similarly, the peak hourly flow over a 24-hour wet weather period is assumed to be three times the peak dry weather flow. These values are based on plausible peaking factors seen at similar agencies in Southern California and are intended to provide a probable wet weather simulation for a capacity evaluation of the City’s existing system under PWWF conditions.
Maximum d/D for modeled City-owned gravity pipelines, as predicted by the model over the simulated 24-hour wet weather period, were compared to the deficiency criteria summarized in Section 5.2. As depicted in Figure 5.4, an existing 6-inch gravity main in S Cliveden Ave north of W Caldwell St is anticipated to flow full under simulated Existing PWWF conditions. The 6-inch main is the eastern outlet of a diversion manhole located at the intersection of W Tichenor St and S Northwood Ave, identified during the April 2025 field survey. A second outlet pipe with a surveyed diameter of 8-inch continues directly south within S Northwood Ave. According to field survey data, the 6-inch main in S Cliveden Ave is the current preferred direction of flow through the diversion manhole.
Table 5.4 summarizes the pipeline deficiency identified under Existing simulated PWWF conditions.
Table 5.4 Existing (2023) System Pipeline Capacity Deficiencies – Simulated PWWF Deficiency
ID Location
Ex. Diameter
(inch)
Model Worst
Condition
Length
(LF)
EX-1 W Tichenor St & S Cliveden Ave, north
of W Caldwell St 6 d/D = 1.0 750
Total Length (LF) 750
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Figure 5.4 Existing (2023) Peak Wet Weather Flow Capacity Analysis Results – Maximum d/D of Modeled Pipelines
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5.4.2 Near-Term (2030) Wet Weather Flow
The capacity of the City’s modeled collection system was analyzed under Near-Term (2030) simulated PWWF conditions. Maximum d/D for modeled City-owned gravity pipelines as predicted by the model over an artificial 24- hour wet weather period were compared to the deficiency criteria summarized in Section 5.2.
As depicted in Figure 5.5 and summarized in Table 5.5, the capacity deficiency in S Cliveden Ave identified under Existing PWWF conditions is also present in the Near-Term scenario.
Table 5.5 Near-Term (2030) System Pipeline Capacity Deficiencies – Simulated PWWF
Deficiency
ID Location
Ex. Diameter
(inch)
Model Worst
Condition Length (LF)
EX-1 W Tichenor St & S Cliveden Ave,
north of W Caldwell St 6 d/D = 1.0 750
Total Length (LF) 750
5.4.3 Ultimate (2045) Wet Weather Flow
Finally, the capacity of the City’s modeled collection system was analyzed under Ultimate (2045) simulated PWWF conditions. Maximum d/D for modeled City-owned gravity pipelines as predicted by the model over an artificial 24- hour wet weather period were compared to the deficiency criteria summarized in Section 5.2.
As depicted in Figure 5.6, the capacity deficiency in S Cliveden Ave identified under Near-Term PWWF conditions is also present in the Ultimate scenario.
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Figure 5.5 Near-Term (2030) Peak Wet Weather Flow Capacity Analysis Results – Maximum d/D of Modeled Pipelines
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Figure 5.6 Ultimate (2045) Peak Wet Weather Flow Capacity Analysis Results – Maximum d/D of Modeled Pipelines
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6 Collection System Condition
Assessment
The following section summarizes the results of the pipeline condition assessment completed as part of this Sewer Master Plan Update. Closed Circuit Television (CCTV) inspection reports for 169 City-owned gravity main segments, totaling approximately 8.6 miles, were reviewed to determine an appropriate rehabilitation or repair method intended to address observed structural and other physical defects.
Pipeline rehabilitation and repair methods range from the in-situ (i.e., trenchless), such as trimming of intruding laterals and lining with Cured-In-Place Pipe (CIPP), to the more complex including excavation point repairs and complete replacement of the pipe segment. Wherever appropriate, in-situ pipeline rehabilitation and repair methods are recommended in the following section to minimize costly open trench construction.
The 2016 Consent Judgment ordered the City to complete an Initial Video Analysis of its entire collection system within two (2) years of entry of the judgment. The City is required to repair or rehabilitate any gravity main assigned a PACP (Pipeline Assessment Certification Program) condition grade of 5 within 4 years of completion of the Initial Video Analysis. Similarly, any gravity main assigned a PACP condition grade of 4 must be addressed within 10 years of completion of the Initial Video Analysis. Therefore, this Sewer Master Plan Update prioritized the review of pipelines with a PACP grade of 4 or 5 to support City staff in meeting the most immediate requirements of the Consent Judgment, Exhibit A Sections 6.2 and 6.3. The PACP condition grading system is described in detail in Section 6.1.
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6.1 Condition Assessment Methodology
The following methodology was used for condition assessment of the 169 gravity main segments reviewed for this Sewer Master Plan Update. These segments include the pipelines with available CCTV inspection data with PACP Grades 4 and 5 to comply with the 2016 Consent Judgement.
1. Review CCTV inspection reports prepared by National Plant Services (NPS). If necessary, request and review corresponding video recordings for additional clarity. The City has an ongoing contract with NPS to perform CCTV inspections of its collection system.
2. Record observed structural defects and other operations & maintenance (O&M) concerns for each inspected gravity main segment in a well-organized and accessible log.
3. Investigate and identify suitable rehabilitation or repair method(s) for each inspected segment.
4. Prepare a planning-level engineer’s cost estimate for each identified rehabilitation and repair method based on the complexity and quantity of impacted segments.
CCTV inspections of the gravity main segments highlighted in Figure 6.1 were conducted between 2019 and 2022 as part of the City’s ongoing video surveillance program to comply with the 2016 Consent Judgment. NPS prepared a corresponding report for each inspected segment in accordance with the National Association of Sewer Service Companies (NASSCO) Pipeline Assessment Certification Program (PACP) standards.
The PACP standards define a uniform set of codes used to easily categorize any frequently encountered structural defects, faults and imperfections, or other physical observations within an inspected pipeline. The following Table 6.1 summarizes the most common defects and observations noted during condition assessment of the City’s pipelines and their corresponding PACP code. Examples of typical defects observed during condition assessment of the City’s pipelines are depicted in Figures 6.1 through 6.9. Example recommendations are included on several figures to exemplify a rehabilitation or repair that may be recommended to correct the defect.
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Table 6.1 Pipeline Assessment Certification Program (PACP) Codes PACP Code Definition
B Broken
BSV/BVV Broken Soils/Void Visible
CC/CL/CM Crack Circumferential/Longitudinal/Multiple
DAE/DAGS Deposits Attached Encrustation/Grease
DSC/DSZ Deposits Settled Hard (Compacted)/Other
FC/FL/FM Fracture Circumferential/Longitudinal/Multiple H Hole
JOL/JOM Joint Offset Large/Medium
MCU Miscellaneous Camera Underwater
MSA Miscellaneous Survey Abandoned
MWL/MWM Miscellaneous Water Level/Mark
MWLS Miscellaneous Water Level Sag
OBI/OBZ Obstruction through Wall/Other
RBL/RML Roots Ball/Medium Lateral
RFJ/RMJ Roots Fine Joint/Medium Joint
TBA/TBI Tap Break In Active/Intruding
TFA/TFC/TFD Tap Factory Active/Capped/Defective
X Collapse
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Figure 6.1 156 th St – Crack Multiple
Recommendation: CIPP Lining
Figure 6.2 Holly Ave – Fracture Circumferential
Recommendation: CIPP Lining
Figure 6.3 Chester Ave – Broken Soil Visible
Recommendation: Excavation Point Repair or Replace
Figure 6.4 Alameda St – Broken
Recommendation: CIPP Lining
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Figure 6.5 Stoneacre Ave – Joint Offset Large
Recommendation: Excavation Point Repair or Replace
Figure 6.6 N Palmer St (Alley) – Deposits
Attached Encrustation
Figure 6.7 134 th St (Easement) – Tap Break-In
Intruding
Figure 6.8 Poinsettia Ave – Roots Ball Lateral
Recommendation = Heavy Clean
Figure 6.9 Caldwell St – Collapse
Recommendation = Excavation Point Repair or Replace
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Additionally, NASSCO PACP standards require all observed structural defects be assigned a condition grade from 1 to
5. The condition grades noted in each CCTV inspection report can be used to quickly determine the presence and quantity of major defects in a pipeline. As summarized in Table 6.2 below, a higher condition grade corresponds to a more severe defect, with the most critical assigned a grade of 4 or 5. In general, a pipeline with a single Grade 5 structural defect is considered significantly more likely to fail and therefore requires immediate attention, compared to a pipeline with several Grade 1 or 2 defects that may remain in good condition for years to come.
Table 6.2 Pipeline Condition Grades
Grade Description Estimated Time to Failure
1 Excellent Unlikely
2 Good 20+ years
3 Fair 10-20 years
4 Poor 5-10 years
5 Immediate Action Has failed or could fail within 5
years
The following rehabilitation and repair methods were considered during condition assessment of the City’s pipelines to address defects with the potential to compromise the structural integrity of the pipe or obstruct flow:
Replace in Place: Excavation and replacement of the entire pipeline segment from manhole to manhole. Excavation Point Repair: Replacement of a short segment of existing pipe via open trench construction to address a severe defect. Dresser style couplings for connections to the existing pipe are recommended to reduce the potential for differential settlement.
CIPP Lining: Cured-In-Place Pipe (CIPP) lining of an entire pipeline segment from manhole to manhole. CIPP lining effectively establishes a new pipe within an existing pipe by using the existing pipe as a mold. The liner is comprised of a resin-saturated felt tube, inverted into the existing pipe between manholes and cured using steam or hot water. The resulting pipe is as strong as the original “host” pipe and has an expected useful life of over 50 years.
In-situ Point Repair: Trenchless/in-situ repair of a single defect, typically 4 feet in length or less, using a CIPP short liner.
Trim Intrusion: Laterals or other objects intruding into a pipeline can collect debris and impede regular sewer flow. Such intrusive elements can be trimmed by a robotic device placed inside a pipeline to aid in unobstructed flow.
Heavy Cleaning: Unless a segment is recommended for complete replacement from manhole to manhole (i.e., Replace in Place), all pipelines are typically cleaned via several passes with a nozzle connected to a jetter pump prior to repair or rehabilitation. Heavy cleaning is often required to clear deposits that occupy more than 25% of the pipe’s cross-sectional area. For pipelines through which flow is nearly completely obstructed by attached encrusted (DAE) or hard/compacted (DSC) deposits, this Sewer Master Plan Update recommends an excavation point repair at the blockage location to prevent potential sewer backups.
Appendix C includes a database of all reviewed pipeline segments with their observed defects and recommended rehabilitation or repair method(s).
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6.2 Condition Assessment Summary
The following Table 6.3 quantifies the various rehabilitation and repair methods recommended to address observed defects in the City’s collection system.
Table 6.3 Condition Assessment Recommendations Summary Rehabilitation/Repair Method
Number of Segments
(Manhole to Manhole) Quantity (LF or EA)
Replace in Place 34 8,371 LF
Excavation Point Repair 36 36 EA
CIPP Lining 99 29,233 LF
Trim Intrusion 18 18 EA
Heavy Cleaning 60 15,741 LF
The City’s existing sewer system index map was used to highlight the location of each condition assessment recommendation. The highlighted index map is included in Appendix C.
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7 Capital Improvement Program
The following section summarizes the recommended pipeline improvement projects designed to address the capacity and condition deficiencies identified in Sections 5 and 6. In addition to individual improvement projects, this section outlines a multi-year phased program for the field survey and digitization of the City’s entire sewer collection network.
This section also compiles the numerous pipeline improvement projects listed in the 2016 Consent Judgment. While the City is legally required to complete these projects within the specified timeframes and should prioritize compliance, it is recommended that the City renegotiate the terms of this agreement. The analysis conducted as part of this Study revealed that constructing these projects without higher quality analysis could negatively impact the performance of the collection system, potentially causing more problems than they solve. For a more detailed analysis on why Dudek recommends improved analysis prior to construction of these projects, refer to Section 7.4.
To assist the City in annual fiscal planning, this section also provides preliminary engineer’s cost estimates for each improvement project, including the phased system survey and digitization program and all identified 2016 Consent Judgment projects. Additionally, this section outlines potential funding sources the City may consider for financing of the Capital Improvement Program (CIP).
7.1 Pipeline Capacity Improvement Projects
Based on the results of the capacity analysis completed on Phase I of the City’s modeled collection system, one (1) pipeline improvement project is recommended to address anticipated capacity deficiencies under Existing (2023) PWWF conditions. The following Table 7.1 summarizes the recommended pipeline capacity improvement project.
Figure 7.1 depicts the location of the project within the City’s modeled collection system.
Table 7.1 Recommended Pipeline Capacity Improvement Projects Summary Project ID
Deficiency
ID
Planning
Scenario Project Description
PCAP-1 EX-1 Existing (2023)
PWWF
Modify diversion manhole 3-5-103 located at the intersection of W Tichenor St and S Northwood Ave to direct flow into the 8-inch outlet pipe to the south.
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Figure 7.1 Recommended Pipeline Capacity Improvement Project PCAP-1
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7.2 Pipeline Condition Improvement Projects
The following Table 7.2 summarizes the recommended improvement projects for those City-owned pipelines with a PACP condition grade of 4 or 5 and reviewed as part of this Sewer Master Plan Update. The condition-related projects are organized according to the state of the existing pipeline and their corresponding rehabilitation or repair method.
For example, pipelines recommended for complete replacement have serious observed structural defects that may result in failure within the next five years and should be prioritized over those pipelines recommended for CIPP lining rehabilitation. Examples of defects that resulted in each of these rehabilitation methods are shown in Figures 6.1 through 6.9. Appendix C provides a color-coded map and log of all pipelines included in projects PCON-1 through PCON-5.
Table 7.2 Pipeline Condition Improvement Projects Summary Project ID Description
PCON-1 Replace 107 LF of existing 6-inch gravity main; replace 7,944 LF of existing 8-inch main; replace 320 LF of existing 10-inch main
PCON-2 Excavation point repair on the following gravity segments: One (1) 6-inch main; Two (2) 8-inch mains; One (1) 10-inch main
PCON-3 Excavation point repair and CIPP lining of thirty-two (32) gravity segments, from manhole to manhole: 179 LF of 6-inch main; 9,576 LF of 8-inch main; 470 LF of 15-inch main PCON-4
CIPP lining of sixty-seven (67) gravity segments, from manhole to manhole: 304 LF of 6-inch main; 18,013 LF of 8-inch main; 691 LF of 12-inch main. Heavy cleaning of 8,602 LF of main prior to CIPP lining.
PCON-5 Heavy cleaning of 7,140 LF of existing gravity main. Heavy cleaning includes removal of encrusted deposits and/or root balls in laterals connected to gravity mains.
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7.3 Sewer System Survey and Digitization Program
As stated in previous sections, the City does not maintain a GIS database or other digital files of its existing sewer collection system. To develop a comprehensive understanding of the existing collection system and more effectively plan for future system improvements, the City is advised to conduct a survey of all manholes and pipelines within its sewer service area as part of a multi-year data collection, analysis, and digitization program. The collected survey data should include invert elevations, pipeline diameters and network connectivity information to support City staff in efficient development of a sewer system GIS database.
The new GIS database can be used to update the City’s existing collection system index map, a static document which has been determined to contain inaccuracies based on the initial field survey and flow monitoring completed as part of this Sewer Master Plan Update. A digitized map of the City’s collection system will facilitate the management of operational and maintenance concerns such as odor control, FOG buildup and potential spill locations.
After collecting and incorporating the field survey data into a GIS database, the City is encouraged to retain the services of an engineering consulting firm proficient in the AquaTwin Sewer software program to continue developing and calibrating the existing sewer system model. Phase I of the sewer model was constructed and calibrated as part of this Sewer Master Plan Update. Following development of the City’s sewer system GIS database, the hydraulic model should be expanded to reflect the surveyed collection network with additional flows allocated according to future flow monitoring data.
The following Table 7.3 summarizes a preliminary multi-year program for field survey and digitization of the City’s entire sewer collection system. For simplicity, the City’s existing system is divided into four quadrants, with each quadrant corresponding to a single phase of the overall program, as shown in Figure 7.2. Each phase is anticipated to be at least one year in duration and include the field survey, analysis, and conversion of survey data to GIS files within each quadrant. Depending on the complexity of the City’s collection system within a specific quadrant, any phase may exceed the estimated one year duration.
If permitted by staff availability and budget, the City should aim to complete the recommended sewer system survey and digitization program prior to commencing a new Sewer Master Plan Update in the next 5 years.
Table 7.3. Sewer System Survey & Digitization Program Summary Project ID Description
SUR-1
Survey City-owned sewer collection system from in the vicinity of El Segundo Blvd south to Compton Blvd, and from City’s western limits east to Alameda St. Convert field survey data to GIS database.
SUR-2 Survey City-owned sewer collection system from Stockton St south to Compton Blvd, and from Alameda St east to City’s eastern limits. Convert field survey data to GIS database.
SUR-3 Survey City-owned sewer collection system from Compton Blvd south to Victoria St, and from City’s western limits east to Alameda St. Convert field survey data to GIS database.
SUR-4 Survey City-owned sewer collection system from Compton Blvd south to Greenleaf Blvd, and from Alameda St east to City’s eastern limits. Convert field survey data to GIS database.
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Figure 7.2 Sewer System Survey and Digitization Program
BY SURVEY REGION
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7.4 2016 Consent Judgment Projects
The 2016 Consent Judgment ordered the City to complete a series of Planned Capital Improvement Projects and Sewer Master Plan Projects within specified timeframes. Table 7.4 and 7.5 summarize the Planned Capital Improvement Projects and Sewer Master Plan Projects as presented in Exhibit B of the Consent Judgment, respectively.
The Sewer Master Plan Projects listed in the Consent Judgment are identical to those presented in the 2008 Master Sewer Study. However, and as described in previous sections, the 2008 Study used a highly simplified and overly conservative method to calibrate the existing system sewer model that does not confirm to traditional or industry standard methods.
Given the limited growth observed within the City’s service area and statewide water conservation efforts over the past 15 years since adoption of the 2008 Study, it is likely that several of the Sewer Master Plan Projects required by the Consent Judgment no longer address existing capacity concerns within the collection system. If so, then blanket implementation of every project required by the Consent Judgment will introduce oversized gravity mains throughout the system that may result in low flow velocities followed by solids deposition and odor complaints. This updated Sewer Master Plan found sufficient capacity within the portion of the sewer system modeled well into buildout conditions.
Therefore, it is recommended that City representatives meet with the Regional Water Quality Control Board, Los Angeles Region (LARWQCB) to obtain approval to perform temporary flow monitoring at each project site identified in the 2008 Study prior to embarking on the design and construction of each project. Current flow monitoring data may indicate that certain pipelines identified as capacity deficient in the 2008 Study do not exceed the maximum d/D criteria established in this Master Plan. A thorough re-evaluation of the improvements recommended in the 2008 Study (and subsequently required by the Consent Judgment) may reduce the number of costly and disruptive pipeline replacement projects in the City’s service area and avoid potential long-term operational issues resulting from oversized sewer mains.
To assist City staff in planning for and ultimately complying with the Consent Judgment, planning-level engineer’s cost estimates for each project are included in the following Section 7.5.
Table 7.4 2016 Consent Judgment Planned Capital Improvement Projects1 Project Number Location Length (LF) Completion Date
CIP 10-4 Fruit Town Sewer Replacement (Oleander) 11,000 Immediate CIP 10-5 Willowbrook Culver Sewer Replacement 5,000 Immediate CIP 10-21 Pearl Ave Sewer Replacement 9,600 Immediate
Note:
1 Dudek recommends City representatives meet with the LARWQCB to obtain approval to perform temporary flow monitoring at each project site prior to commending design and construction of these projects. Refer to the text in Section 7.4 for additional discussion.
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Table 7.5 2016 Consent Judgment Sewer Master Plan Projects1 Project Number Description Length (LF) Completion Date
1-1 Myrrh & Mid of Williams and Gibson to North 1156 ft 1,156 Immediate 1-2 Laurel & Harris to South to South 663 ft 663 Immediate 1-3 Rosecrans between Castlegate & Cookace to West 682 Immediate 2-6 218 ft S Cypress and Appila to South 398 ft 398 Immediate 2-7 Laurel and Sherrer to SE 248 ft 248 Immediate
3-12 Rosecrans & Oleander to East 677 ft 677 Immediate
3-15 Rosecrans & Acacia to East 400 ft 400 Immediate
4-17 Grandee & 136th to East 268 ft 268 Immediate
4-18 Compton & Willowbrook to East 544 ft 544 Immediate 4-20 Caldwell and Wilmington to North 184 ft 184 Immediate 5-22 Poplar & Oleander to East 2171 ft 2,171 Immediate
5-26 Palmer & Tamarind to East 204 ft 204 Immediate
5-27 325 ft S of Willowbrook to East 482 ft 482 Immediate 5-28 240 ft N of Elm & Willowbrook to South 1545 ft 1,545 Immediate 5-29 Poplar & Tamarind to East 250 ft 250 Immediate
5-30 Elm & Willowbrook to East 782 ft 782 Immediate
5-31 Carson Pl & Alameda to West 182 ft 182 Immediate
5-32 190 ft S of Carson Pl & Alameda to West 170 170 Immediate 6-33 Spruce & Pacific to West 150 ft 150 Immediate
6-34 Rosecrans & Pacific to West 1219 ft 1,219 Immediate 6-35 Rosecrans & Tajauta to West 1022 ft 1,022 Immediate 6-36 Rosecrans & Parmalee to West 461 ft 461 Immediate
6-37 Rosecrans & Central to East 103 ft 103 Immediate
6-40 Palmer & Wilmington to West 397 ft 397 Immediate
6-41 185 ft W of Poplar & Paulson to East 377 ft 377 Immediate 6-42 93 ft W of Compton & Nester to South 50 ft 50 Immediate 7-44 136th & Slater to East 61 ft 61 Immediate
7-45 134th & Slater to East 880 ft 880 Immediate
7-46 134th & Bahama to NE, then North to Central 1052 ft 1,052 Immediate 7-47 South of 134th & Central to East 1241 ft 1,241 Immediate 8-48 Laurel & Santa Fe to North 325 ft 325 Immediate
8-49 350 ft N of Myrrh & Santa Fe to South 777 ft 777 Immediate 8-50 Alondra & Santa Fe to North 599 ft 599 Immediate
8-51 157 ft W of Alondra & Chester to South 1328 ft 1,328 Immediate 9-52 134th & Salinas to East 1308 ft 1,308 Immediate
9-53 139th & McKinley to North 1632 ft 1,632 Immediate
9-54 139th & McKinley to West 473 ft 473 Immediate
10-55 Compton & Bullis East 5 ft 5 Immediate
10-56 Alondra & Long Beach to North 518 ft 518 Immediate
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Note:
1 Dudek recommends City representatives meet with the LARWQCB to obtain approval to perform temporary flow monitoring at each project site prior to commending design and construction of these projects. Refer to the text in Section 7.4 for additional discussion.
7.5 Recommended Projects Cost Summary
The following Tables 7.6 and 7.7 present the planning-level cost estimates developed for each recommended pipeline capacity and pipeline condition improvement project identified within this Sewer Master Plan Update. The condition improvement projects are organized based on recommended repair method (e.g., replace in place, CIPP liner, etc.) instead of geographical area. In practice, City staff may elect to complete a series of condition-related improvement projects located near each other to minimize repeated disturbances in the same area. Regardless, pipelines recommended for replacement should be prioritized over those with less intensive repairs such as CIPP lining.
Table 7.8 presents the estimated costs associated with implementation of the sewer system survey and digitization program recommended to establish a virtual database of the City’s collection system. Actual costs may vary widely depending on the complexity of the City’s system, for which limited information is currently available.
Lastly, updated costs were developed for the Planned Capital Improvement Projects and Sewer Master Plan Projects as presented in Exhibit B of the 2016 Consent Judgement, which are presented in Tables 7.9 and 7.10, respectively.
Appendix D contains the detailed cost estimates for each project.
All costs presented herein are present value and correspond to an Engineering News Record (ENR) Construction Cost Index (CCI) value of 15,778.4 for Los Angeles in March 2025.
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Table 7.6. Recommended Capacity Improvement Projects Cost Summary Project Costs by Planning Scenario ($1,000)
Project ID Project Name Description Justification
Existing
(2025)
Near-Term
(2030)
Ultimate
(2045)
PCAP-1 Diversion
Manhole ID 3-5-
103 Modification
Modify diversion manhole 3-5-103 located at
the intersection of W Tichenor St and S
Northwood Ave to direct flow into the 8-inch
outlet pipe to the south.
Maximum d/D = 1.0
anticipated under PWWF
conditions in the preferred 6-
inch diameter outlet pipeline
$29 -- --
TOTAL: $29 -- --
Table 7.7. Recommended Condition Improvement Projects Cost Summary Project Cost
($1,000)Project
ID Project Name Description Justification Existing (2025) PCON-1 Complete Pipe
Replacement
Replace 107 LF of existing 6-inch gravity main
Replace 7,944 LF of existing 8-inch main
Replace 320 LF of existing 10-inch main
Multiple existing pipeline segments are in very
poor condition with several structural defects
$4,781
PCON-2 Excavation Point
Repairs
Excavation point repair on the following gravity
segments: One (1) 6-inch main; Two (2) 8-inch mains;
One (1) 10-inch main
Pipeline segments have one significant
structural defect or encrusted/compacted
deposits that severely impact normal sewer
flow.
$247
PCON-3 Excavation Point
Repairs & Full CIPP
Lining
Excavation point repair and CIPP lining of thirty-two
(32) gravity segments, from manhole to manhole: 179
LF of 6-inch main; 9,576 LF of 8-inch main; 470 LF of
15-inch main
Pipeline segments have one significant
structural defect and multiple cracks or minor
fractures.
$3,443
PCON-4 CIPP Lining - No
Excavation
CIPP lining of sixty-seven (67) gravity segments, from
manhole to manhole: 304 LF of 6-inch main; 18,013 LF
of 8-inch main; 691 LF of 12-inch main. Heavy cleaning
of 8,602 LF of main prior to CIPP lining.
Pipeline segments have multiple cracks or minor
fractures.
$3,883
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Project Cost
($1,000)Project
ID Project Name Description Justification Existing (2025) PCON-5 Heavy Cleaning - No
Excavation
Heavy cleaning of 7,140 LF of existing gravity main.
Heavy cleaning includes removal of encrusted deposits
and/or root balls in laterals connected to gravity
mains.
Pipeline segments have encrusted grease
deposits, debris, and/or intruding roots.
$72
TOTAL: $12,426
Table 7.8. Sewer System Survey and Digitization Program Cost Summary Project
ID Project Name Description Justification
Project Cost
($1,000)1
SUR-1 Sewer System
Survey Phase 1
Survey City-owned sewer collection system from in the vicinity of El Segundo Blvd south to Compton Blvd, and from City’s western limits east to Alameda St. Convert field survey data to GIS database. (Est. 500 manholes.)
$250
SUR-2 Sewer System
Survey Phase 2
Survey City-owned sewer collection system from Stockton St south to Compton Blvd, and from Alameda St east to City’s eastern limits.
Convert field survey data to GIS database. (Est. 400 manholes) $200
SUR-3 Sewer System
Survey Phase 3
Survey City-owned sewer collection system from Compton Blvd south to Victoria St, and from City’s western limits east to Alameda St. Convert field survey data to GIS database. (Est. 500 manholes)
$250
SUR-4 Sewer System
Survey Phase 4
Survey City-owned sewer collection system from Compton Blvd south to Greenleaf Blvd, and from Alameda St east to City’s eastern limits.
Convert field survey data to GIS database. (Est. 400 manholes) Create a full, accurate and up-
to-date sewer system GIS for
the City. This will provide the
City with the ability to create a
full system hydraulic model.
$200
TOTAL: $900
Note:
1 Cost based on estimates of total numbers of manholes in each survey zone.
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Table 7.9. 2016 Consent Judgment Planned Capital Improvement Projects Cost Summary Project ID Project Name Description1 Justification
Project Cost
($1,000)1
CIP 10-4 Fruit Town Sewer Replacement (Oleander) Replace 11,000 LF of 8-inch diameter pipe with 10-inch diameter pipe
$7,040
CIP 10-5 Willowbrook Culver Sewer Replacement Replace 5,000 LF of 8-inch diameter pipe with 10-inch diameter pipe
$3,200
CIP 10-21 Pearl Ave Sewer Replacement Replace 9,600 LF of 8-inch diameter pipe with 10-inch diameter pipe
Required by 2016 Consent
Judgement
$6,144
$16,384
Notes:
1 Existing and proposed diameters are assumed "best guess" from 2008 Master Sewer Study.
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Table 7.10. Estimated Cost for Projects Required by 2016 Consent Judgement Project
Number Project Description
Length
(LF)
Ex.
Diam
(inch)1
Prop.
Diam
(inch)1
Total Est.
Constr.
Cost
($1,000)2
Markup
(60%)
Total Est.
Project
Cost
($1,000)
1-1 Myrrh & Mid of Williams
and Gibson to North
1,156 8 10 $463 $278 $741
1-2 Laurel & Harris to South to
South
663 8 10 $266 $160 $426
1-3 Rosecrans between
Castlegate & Cookace to
West
682 8 10 $273 $164 $437
2-6 218 ft S Cypress and Appila
to South
398 8 10 $160 $96 $256
2-7 Laurel and Sherrer to SE 248 8 10 $100 $60 $160
3-12 Rosecrans & Oleander to
East
677 8 10 $271 $163 $434
3-15 Rosecrans & Acacia to East 400 8 10 $160 $96 $256 4-17 Grandee & 136th to East 268 10 15 $161 $97 $258 4-18 Compton & Willowbrook to
East
544 10 15 $327 $197 $524
4-20 Caldwell and Wilmington
to North
184 10 15 $111 $67 $178
5-22 Poplar & Oleander to East 2,171 8 10 $869 $522 $1,391 5-26 Palmer & Tamarind to East 204 8 10 $ 82 $ 50 $132 5-27 325 ft S of Willowbrook to
East
482 8 10 $193 $116 $309
5-28 240 ft N of Elm &
Willowbrook to South
1,545 8 10 $618 $371 $989
5-29 Popular & Tamarind to East 250 8 10 $100 $60 $160 5-30 Elm & Willowbrook to East 782 8 10 $313 $188 $501 5-31 Carson Pl & Alameda to
West
182 8 10 $ 73 $44 $117
5-32 190 ft S of Carson Pl &
Alameda to West
170 8 10 $ 68 $41 $109
6-33 Spruce & Pacific to West 150 8 10 $ 60 $36 $96 6-34 Rosecrans & Pacific to
West
1,219 8 10 $488 $293 $781
6-35 Rosecrans & Tajauta to
West
1,022 8 10 $409 $246 $655
6-36 Rosecrans & Parmalee to
West
461 8 10 $185 $111 $296
6-37 Rosecrans & Central to East 103 8 10 $42 $26 $68 6-40 Palmer & Wilmington to
West
397 8 10 $159 $96 $255
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Project
Number Project Description
Length
(LF)
Ex.
Diam
(inch)1
Prop.
Diam
(inch)1
Total Est.
Constr.
Cost
($1,000)2
Markup
(60%)
Total Est.
Project
Cost
($1,000)
6-41 185 ft W of Poplar &
Paulson to East
377 8 10 $151 $91 $242
6-42 93 ft W of Compton &
Nester to South
50 8 10 $20 $12 $32
6-44 136th & Slater to East 61 8 10 $25 $15 $40
6-45 134th & Slater to East 880 8 10 $352 $212 $564
6-46 134th & Bahama to NE, then
North to Central
1,052 8 10 $421 $253 $674
6-47 South of 134th & Central to
East
1,241 8 10 $497 $299 $796
8-48 Laurel & Santa Fe to North 325 12 15 $195 $117 $312 8-49 350 ft N of Myrrh & Santa
Fe to South
777 12 15 $467 $281 $748
8-50 Alondra & Santa Fe to
North
599 12 15 $360 $216 $576
8-51 157 ft W of Alondra &
Chester to South
1,328 12 15 $797 $479 $1,276
9-52 134th & Salinas to East 1,308 8 10 $524 $315 $839 9-53 139th & McKinley to North 1,632 8 10 $653 $392 $1,045 9-54 139th & McKinley to West 473 8 10 $190 $114 $304 10-55 Compton & Bullis East 5 8 10 $2 $2 $4
10-56 Alondra & Long Beach to
North
518 8 10 $208 $125 $333
TOTALS: 24,984 -- -- $10,813 $6,501 $17,314
Notes:
1 Existing and proposed diameters are assumed "best guess" from 2008 Master Sewer Study. 2 Assumes replacement cost of $40/in-diam/LF.
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7.6 Potential Funding Sources
The following table presents descriptions of potential State and Federal funding sources the City may want to consider for the sewer CIP.
Table 7.11. Potential Funding Sources
Funding Source Program Description Type
Typical Range
of Funding
Estimated Time
to Acquire
Funds
California State
Water Resources
Control Board
(SWRCB)1
Clean Water
State Revolving
Fund (CWSRF)
Provides low-interest
loans for water quality
improvement projects,
including sewer system
upgrades.
State $1 million to
$100 million
6-12 months
California
Infrastructure
and Economic
Development
Bank (IBank)
Infrastructure
State Revolving
Fund (ISRF)
Program
Offers low-cost
financing to public
agencies for various
infrastructure projects,
including sewer
systems.
State $1 million to $65
million
45-90 days
Community
Development
Block Grants
(CDBG)2
Department of
Housing & Urban
Development
(HUD)
Administered by HUD,
these grants can be
used for infrastructure
projects in low- to
moderate-income
communities.
Federal
Varies, typically
$500,000 to $5
million
6-12 months
U.S.
Environmental
Protection
Agency (EPA)
Water
Infrastructure
Finance and
Innovation Act
(WIFIA)
Provides long-term,
low-cost supplemental
loans for significant
water and wastewater
projects.
Federal $20 million to
$7.5 billion
6-18 months
Notes:
1 Compton does not appear to qualify as a disadvantaged community (DAC) under this opportunity due to the City’s median household income (MHI) being higher than the value to qualify. As a result, Compton could quality to receive a low interest loan. The 2023 MHI for Compton is $74,270 (https://www.census.gov/quickfacts/fact/table/comptoncitycalifornia/PST045223), while the MHI to qualify as a DAC (under the California Water Code definition) is $73,524. (https://www.waterboards.ca.gov/drinking_water/services/funding/documents/srf/mhi.pdf). If Compton has data supporting that the MHI is under $73,524, this loan could turn into a principal forgiveness opportunity (effectively a grant). 2 The City of Compton already receives funding through CDBG ( https://www.comptoncity.org/departments/city-manager/grants- division/cdbg). However, upgrades benefiting low/middle income residents could potentially be funded under this program.
APPENDIX A
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CITY OF COMPTON SEWER INDEX MAP
APPENDIX B
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ADS ENVIRONMENTAL SERVICES 2023 FLOW
MONITORING REPORT
APPENDIX C
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PIPELINE CONDITION ASSESSMENT DATA AND MAP
APPENDIX D
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RECOMMENDED CIP PROJECT COST ESTIMATE DETAILS
July 22, 2025
TO: HONORABLE MAYOR AND CITY COUNCIL MEMBERS
FROM: CITY CONTROLLER
SUBJECT: AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF COMPTON LEVYING A MUNICIPAL TAX RATE FOR THE FISCAL YEAR 2025-2026
SUMMARY
The purpose of this Ordinance is to authorize the levy of the assessed valuation municipal tax rate for Fiscal Year 2025-2026.
BACKGROUND
The City has levied a municipal tax (parcel tax) for many years in line with Section 1402, 1600 and 1601 of the City Charter to pay for the City’s obligations under the Employees’ Retirement Plan managed by the California Public Employees’ Retirement System (CalPERS). The municipal tax is collected by the Los Angeles County Auditor-Controller on behalf of the City. The Los Angeles County Auditor-Controller has based assessed values at market values and it is necessary to set the municipal tax at a rate based on market value. The tax rate will be at 0.439147, lower than the prior fiscal year.
STATEMENT OF ISSUE
The Los Angeles County Auditor-Controller requires that the municipal tax rate ordinance be passed each year by the City Council. This agenda item is required to comply with the County requirements.
FISCAL IMPACT
The passing of the attached Ordinance will ensure that the City’s retirement fund continues to receive the municipal parcel tax revenues in line with the requirements of the City Charter for the purposes stipulated by the Charter. The municipal parcel tax generates approximately $35 million per year.
ALTERNATIVE
The City’s General Fund would have to pay the cost of the retirement obligations resulting in severe financial consequences to other City programs and services.
15.15.15. RECOMMENDATION
Staff recommends that the City Council adopt the attached Ordinance.
SHARON RAHBAN NAVIZADEH,
CITY CONTROLLER
APPROVED FOR FORWARDING:
WILLIE A. HOPKINS JR.
CITY MANAGER
ORDINANCE NO. __________
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF COMPTON LEVYING A MUNICIPAL TAX RATE FOR THE FISCAL YEAR 2025-2026
WHEREAS, the City has levied a municipal tax (parcel tax) for many years in line with Section 1402, 1600, and 1601 of the City Charter to pay for the City’s obligations under the Employees’ Retirement Plan managed by the California Public Employees’ Retirement System (CalPERS); and
WHEREAS, the municipal tax is collected by the Los Angeles County Auditor- Controller on behalf of the City; and
WHEREAS, the Los Angeles County Auditor-Controller has based assessed rates at market values and it is necessary to set the municipal tax at rate based on market value; and
WHEREAS, it is required that the City certify the municipal tax rate every year.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF COMPTON DOES HEREBY ORDAIN AS FOLLOWS:
Section 1.That there is hereby levied a municipal tax upon the equalized assessment of the taxable property in the City of Compton at a market valuation of the following rates (per cent):
Taxation District #1……………………………………0.439147
(Old City of Compton, Annexations 1 to 3 inc; 5 to 10 inc; 13 to 32 inc; 106, 107 111 to 122 inc; 125 to 133 inc; 136 to 139 inc; 141 to 143 inc; 145, 147, 149, 151, 152, 153A, 155, 158, 159, 160, 161, 163, 164, 168, 172A, 173B)
Rosecrans Redevelopment Project…………………0.439147
Walnut Industrial Redevelopment Project………….0.439147
Section 2. That said rate is made up as follow:
Employment Retirement (Debt Service)…………… 0.439147
Section 3. That the City Clerk shall certify to the adoption of this Ordinance by the City Council and shall cause this Ordinance to be published as required by law.
Section 4. That pursuant to Section 611 of the Compton Charter, this Ordinance shall take effect upon adoption of the City Council.
Section 5. That the Mayor shall sign and the City Clerk shall attest to the adoption of this Ordinance.
ADOPTED this ____________ day of _____________, 2025.
_______________________________
EMMA SHARIF
MAYOR OF THE CITY OF COMPTON
Ordinance No. ___________